update bootstrap to version 4.3.1

24 files changed, 149 insertions, 82 deletions

diff --git a/vendor/twbs/bootstrap/site/_includes/analytics.html b/vendor/twbs/bootstrap/site/_includes/analytics.html
new file mode 100644
index 000000000..eeb57f903
--- /dev/null
+++ b/vendor/twbs/bootstrap/site/_includes/analytics.html
@@ -0,0 +1,6 @@
+<script>
+  window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)};ga.l=+new Date;
+  ga('create', 'UA-146052-10', 'getbootstrap.com');
+  ga('send', 'pageview');
+</script>
+<script async src="https://www.google-analytics.com/analytics.js"></script>
diff --git a/vendor/twbs/bootstrap/site/_includes/bugify.html b/vendor/twbs/bootstrap/site/_includes/bugify.html
index 6a02bd23e..7f3340421 100644
--- a/vendor/twbs/bootstrap/site/_includes/bugify.html
+++ b/vendor/twbs/bootstrap/site/_includes/bugify.html
@@ -1,7 +1,7 @@
 {%- comment -%}
-Usage: {% include bugify.html content=text %},
-where content is a string that contains a bug reference name and id.
-e.g. Bootstrap#19984
+  Usage: include bugify.html content=text,
+  where content is a string that contains a bug reference name and id.
+  e.g. Bootstrap#19984
 {%- endcomment -%}
 
 {%- assign words = include.content | split: " " -%}
@@ -17,7 +17,7 @@ e.g. Bootstrap#19984
     {%- when "Bootstrap" -%}
       <a href="https://github.com/twbs/bootstrap/issues/{{ bug_id }}">#{{ bug_id }}</a>
     {%- when "Edge" -%}
-      <a href="https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/{{ bug_id }}">Edge issue #{{ bug_id }}</a>
+      <a href="https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/{{ bug_id }}/">Edge issue #{{ bug_id }}</a>
     {%- when "A11yUserVoice" -%}
       <a href="https://microsoftaccessibility.uservoice.com/forums/307429-microsoft-accessibility-feedback/suggestions/{{ bug_id }}">Microsoft A11y UserVoice idea #{{ bug_id }}</a>
     {%- when "UserVoice" -%}
diff --git a/vendor/twbs/bootstrap/site/_includes/callout-danger-async-methods.md b/vendor/twbs/bootstrap/site/_includes/callout-danger-async-methods.md
index ca35e0b77..083f28f23 100644
--- a/vendor/twbs/bootstrap/site/_includes/callout-danger-async-methods.md
+++ b/vendor/twbs/bootstrap/site/_includes/callout-danger-async-methods.md
@@ -3,6 +3,6 @@
 
 All API methods are **asynchronous** and start a **transition**. They return to the caller as soon as the transition is started but **before it ends**. In addition, a method call on a **transitioning component will be ignored**.
 
-[See our JavaScript documentation for more information.]({{ site.baseurl }}/docs/{{ site.docs_version }}/getting-started/javascript/)
+[See our JavaScript documentation for more information]({{ site.baseurl }}/docs/{{ site.docs_version }}/getting-started/javascript/).
 {% endcapture %}
 {% include callout.html content=callout type="danger" %}
diff --git a/vendor/twbs/bootstrap/site/_includes/callout-info-prefersreducedmotion.md b/vendor/twbs/bootstrap/site/_includes/callout-info-prefersreducedmotion.md
new file mode 100644
index 000000000..9c3090376
--- /dev/null
+++ b/vendor/twbs/bootstrap/site/_includes/callout-info-prefersreducedmotion.md
@@ -0,0 +1,4 @@
+{% capture callout %}
+The animation effect of this component is dependent on the `prefers-reduced-motion` media query. See the [reduced motion section of our accessibility documentation]({{ site.baseurl }}/docs/{{ site.docs_version }}/getting-started/accessibility/#reduced-motion).
+{% endcapture %}
+{% include callout.html content=callout type="info" %}
diff --git a/vendor/twbs/bootstrap/site/_includes/callout.html b/vendor/twbs/bootstrap/site/_includes/callout.html
index ff9450dc4..434d10e1e 100644
--- a/vendor/twbs/bootstrap/site/_includes/callout.html
+++ b/vendor/twbs/bootstrap/site/_includes/callout.html
@@ -1,7 +1,7 @@
 {%- comment -%}
-Usage: {% include callout.html content=callout type="type" %},
-where content is a capture with the content
-and type is one of: info (default), danger, warning
+  Usage: include callout.html content=callout type="type",
+  where content is a capture with the content
+  and type is one of: info (default), danger, warning
 {%- endcomment -%}
 {%- assign css_class = include.type | default: "info" -%}
 <div class="bd-callout bd-callout-{{ css_class }}">
diff --git a/vendor/twbs/bootstrap/site/_includes/docs-navbar.html b/vendor/twbs/bootstrap/site/_includes/docs-navbar.html
index cb442bd53..80b61b655 100644
--- a/vendor/twbs/bootstrap/site/_includes/docs-navbar.html
+++ b/vendor/twbs/bootstrap/site/_includes/docs-navbar.html
@@ -15,13 +15,13 @@
         <a class="nav-link {% if page.title == "Examples" %}active{% endif %}" href="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/" onclick="ga('send', 'event', 'Navbar', 'Community links', 'Examples');">Examples</a>
       </li>
       <li class="nav-item">
-        <a class="nav-link" href="{{ site.themes }}" onclick="ga('send', 'event', 'Navbar', 'Community links', 'Themes');" target="_blank" rel="noopener">Themes</a>
+        <a class="nav-link" href="{{ site.themes }}/" onclick="ga('send', 'event', 'Navbar', 'Community links', 'Themes');" target="_blank" rel="noopener">Themes</a>
       </li>
       <li class="nav-item">
-        <a class="nav-link" href="{{ site.expo }}" onclick="ga('send', 'event', 'Navbar', 'Community links', 'Expo');" target="_blank" rel="noopener">Expo</a>
+        <a class="nav-link" href="{{ site.expo }}/" onclick="ga('send', 'event', 'Navbar', 'Community links', 'Expo');" target="_blank" rel="noopener">Expo</a>
       </li>
       <li class="nav-item">
-        <a class="nav-link" href="{{ site.blog }}" onclick="ga('send', 'event', 'Navbar', 'Community links', 'Blog');" target="_blank" rel="noopener">Blog</a>
+        <a class="nav-link" href="{{ site.blog }}/" onclick="ga('send', 'event', 'Navbar', 'Community links', 'Blog');" target="_blank" rel="noopener">Blog</a>
       </li>
     </ul>
   </div>
@@ -32,12 +32,16 @@
         v{{ site.docs_version }}
       </a>
       <div class="dropdown-menu dropdown-menu-right" aria-labelledby="bd-versions">
-        <a class="dropdown-item active" href="{{ site.baseurl }}/docs/{{ site.docs_version }}/">Latest (4.1.x)</a>
+        <a class="dropdown-item active" href="{{ site.baseurl }}/docs/{{ site.docs_version }}/">Latest (4.3.x)</a>
+        <a class="dropdown-item" href="https://getbootstrap.com/docs/4.2/">v4.2.1</a>
         <a class="dropdown-item" href="https://getbootstrap.com/docs/4.0/">v4.0.0</a>
         <div class="dropdown-divider"></div>
         <a class="dropdown-item" href="https://v4-alpha.getbootstrap.com/">v4 Alpha 6</a>
+        <a class="dropdown-item" href="https://getbootstrap.com/docs/3.4/">v3.4.0</a>
         <a class="dropdown-item" href="https://getbootstrap.com/docs/3.3/">v3.3.7</a>
         <a class="dropdown-item" href="https://getbootstrap.com/2.3.2/">v2.3.2</a>
+        <div class="dropdown-divider"></div>
+        <a class="dropdown-item" href="{{ site.baseurl }}/docs/versions/">All versions</a>
       </div>
     </li>
 
@@ -52,10 +56,15 @@
       </a>
     </li>
     <li class="nav-item">
-      <a class="nav-link p-2" href="{{ site.slack }}" target="_blank" rel="noopener" aria-label="Slack">
+      <a class="nav-link p-2" href="{{ site.slack }}/" target="_blank" rel="noopener" aria-label="Slack">
         {%- include icons/slack.svg class="navbar-nav-svg" -%}
       </a>
     </li>
+    <li class="nav-item">
+      <a class="nav-link p-2" href="{{ site.opencollective }}/" target="_blank" rel="noopener" aria-label="Open Collective">
+        {%- include icons/opencollective.svg class="navbar-nav-svg" -%}
+      </a>
+    </li>
   </ul>
 
   <a class="btn btn-bd-download d-none d-lg-inline-block mb-3 mb-md-0 ml-md-3" href="{{ site.baseurl }}/docs/{{ site.docs_version }}/getting-started/download/">Download</a>
diff --git a/vendor/twbs/bootstrap/site/_includes/docs-sidebar.html b/vendor/twbs/bootstrap/site/_includes/docs-sidebar.html
index 61edd8ec1..4a41a5581 100644
--- a/vendor/twbs/bootstrap/site/_includes/docs-sidebar.html
+++ b/vendor/twbs/bootstrap/site/_includes/docs-sidebar.html
@@ -1,5 +1,5 @@
 <form class="bd-search d-flex align-items-center">
-  <input type="search" class="form-control" id="search-input" placeholder="Search..." aria-label="Search for..." autocomplete="off" data-siteurl="{{ site.url }}" data-docs-version="{{ site.docs_version }}">
+  <input type="search" class="form-control" id="search-input" placeholder="Search..." aria-label="Search for..." autocomplete="off" data-docs-version="{{ site.docs_version }}">
   <button class="btn btn-link bd-search-docs-toggle d-md-none p-0 ml-3" type="button" data-toggle="collapse" data-target="#bd-docs-nav" aria-controls="bd-docs-nav" aria-expanded="false" aria-label="Toggle docs navigation">
     {%- include icons/menu.svg width="30" height="30" -%}
   </button>
@@ -35,20 +35,6 @@
             <a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/{{ group_slug }}/{{ doc_slug }}/">
               {{ doc.title }}
             </a>
-
-            {%- comment -%}
-            {% unless doc.sections == nil %}
-              <ul class="nav">
-                {% for section in doc.sections %}
-                  <li>
-                    <a href="#{{ section.title | downcase | replace: ' ', '-' }}">
-                      {{ section.title }}
-                    </a>
-                  </li>
-                {% endfor %}
-              </ul>
-            {% endunless %}
-            {%- endcomment -%}
           </li>
         {%- endfor -%}
       </ul>
diff --git a/vendor/twbs/bootstrap/site/_includes/example.html b/vendor/twbs/bootstrap/site/_includes/example.html
index 24d12626b..dcd148b02 100644
--- a/vendor/twbs/bootstrap/site/_includes/example.html
+++ b/vendor/twbs/bootstrap/site/_includes/example.html
@@ -1,23 +1,51 @@
 {%- comment -%}
-Usage: {% include example.html content=markup %},
-where content is a capture with the HTML content
-id - null (default)
-class - "bd-example" (default)
-optional: hide_preview - disabled (default)
-optional: hide_markup - disabled (default)
+  Usage: include example.html content=markup [args],
+  where content is a capture with the HTML content
+
+  args can be one of the following:
+    id - null (default)
+    class - "bd-example" (default)
+    optional: hide_preview - disabled (default)
+    optional: hide_markup - disabled (default)
 {%- endcomment -%}
 
-{%- assign preview_id = include.id -%}
-{%- assign preview_class = include.class -%}
+{%- assign id = include.id -%}
+{%- assign class = include.class -%}
 
 {%- if include.hide_preview == null -%}
-<div{% if preview_id %} id="{{ preview_id }}"{% endif %} class="bd-example{% if preview_class %} {{ preview_class }}{% endif %}">
+<div{% if id %} id="{{ id }}"{% endif %} class="bd-example{% if class %} {{ class }}{% endif %}">
   {{- include.content -}}
 </div>
 {%- endif -%}
 
 {%- if include.hide_markup == null -%}
   {%- highlight html -%}
-    {{- include.content | replace: 'data-src="holder.js', 'src="...' -}}
+    {%- if include.content contains '<svg class="bd-placeholder-img' -%}
+      {%- assign modified_content = include.content
+        | replace: '<svg class="bd-placeholder-img', '✂️<svg class="bd-placeholder-img'
+        | replace: '</svg>', '</svg>✂️'
+        | split: '✂️' -%}
+
+      {%- if include.content contains 'bd-placeholder-img ' -%}
+        {%- assign image_class = include.content
+          | replace_first: 'bd-placeholder-img', 'bd-placeholder-img ✂️'
+          | replace: '" width="', '✂️" width="'
+          | split: '✂️' -%}
+        {%- assign image_class = image_class[1] | replace: 'bd-placeholder-img-lg', '' | strip -%}
+      {%- endif -%}
+
+      {%- for content_chunk in modified_content -%}
+        {%- if content_chunk contains '<svg class="bd-placeholder-img' -%}
+          {%- capture img_placeholder -%}
+            <img src="..." {% if image_class %}class="{{ image_class }}" {% endif %}alt="...">
+          {%- endcapture -%}
+          {{- img_placeholder -}}
+        {%- else -%}
+          {{- content_chunk -}}
+        {%- endif -%}
+      {%- endfor -%}
+    {%- else -%}
+      {{- include.content -}}
+    {%- endif -%}
   {%- endhighlight -%}
 {%- endif -%}
diff --git a/vendor/twbs/bootstrap/site/_includes/footer.html b/vendor/twbs/bootstrap/site/_includes/footer.html
index 8e16577c1..03192a861 100644
--- a/vendor/twbs/bootstrap/site/_includes/footer.html
+++ b/vendor/twbs/bootstrap/site/_includes/footer.html
@@ -2,11 +2,11 @@
   <div class="container-fluid p-3 p-md-5">
     <ul class="bd-footer-links">
       <li><a href="{{ site.repo }}">GitHub</a></li>
-      <li><a href="https://twitter.com/getbootstrap">Twitter</a></li>
+      <li><a href="https://twitter.com/{{ site.twitter }}">Twitter</a></li>
       <li><a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/examples/">Examples</a></li>
       <li><a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/about/overview/">About</a></li>
     </ul>
-    <p>Designed and built with all the love in the world by <a href="https://twitter.com/mdo" target="_blank" rel="noopener">@mdo</a> and <a href="https://twitter.com/fat" target="_blank" rel="noopener">@fat</a>. Maintained by the <a href="https://github.com/orgs/twbs/people">core team</a> with the help of <a href="https://github.com/twbs/bootstrap/graphs/contributors">our contributors</a>.</p>
-    <p>Currently v{{ site.current_version }}. Code licensed <a href="https://github.com/twbs/bootstrap/blob/master/LICENSE" target="_blank" rel="license noopener">MIT</a>, docs <a href="https://creativecommons.org/licenses/by/3.0/" target="_blank" rel="license noopener">CC BY 3.0</a>.</p>
+    <p>Designed and built with all the love in the world by the <a href="{{ site.baseurl }}/docs/{{ site.docs_version }}/about/team/">Bootstrap team</a> with the help of <a href="{{ site.repo }}/graphs/contributors">our contributors</a>.</p>
+    <p>Currently v{{ site.current_version }}. Code licensed <a href="{{ site.repo }}/blob/master/LICENSE" target="_blank" rel="license noopener">MIT</a>, docs <a href="https://creativecommons.org/licenses/by/3.0/" target="_blank" rel="license noopener">CC BY 3.0</a>.</p>
   </div>
 </footer>
diff --git a/vendor/twbs/bootstrap/site/_includes/header.html b/vendor/twbs/bootstrap/site/_includes/header.html
index b92a5790a..8fa50f395 100644
--- a/vendor/twbs/bootstrap/site/_includes/header.html
+++ b/vendor/twbs/bootstrap/site/_includes/header.html
@@ -4,6 +4,9 @@
 <meta name="author" content="{{ site.authors }}">
 <meta name="generator" content="Jekyll v{{ jekyll.version }}">
 
+<meta name="docsearch:language" content="en">
+<meta name="docsearch:version" content="{{ site.docs_version }}">
+
 <title>
   {%- if page.title -%}
     {{ page.title | smartify }} · {{ site.title | smartify }}
@@ -12,26 +15,9 @@
   {%- endif -%}
 </title>
 
-<!-- Bootstrap core CSS -->
-{% if site.github %}
-<link href="{{ site.baseurl }}/docs/{{ site.docs_version }}/dist/css/bootstrap.min.css" rel="stylesheet" integrity="{{ site.cdn.css_hash }}" crossorigin="anonymous">
-{% else %}
-<link href="{{ site.baseurl }}/docs/{{ site.docs_version }}/dist/css/bootstrap.css" rel="stylesheet">
-{% endif %}
-
-<!-- Documentation extras -->
-{% if page.layout == "docs" %}
-<link href="https://cdn.jsdelivr.net/npm/docsearch.js@2/dist/cdn/docsearch.min.css" rel="stylesheet">
-{% endif %}
-<link href="{{ site.baseurl }}/docs/{{ site.docs_version }}/assets/css/docs.min.css" rel="stylesheet">
+<link rel="canonical" href="{{ site.url | append: page.url }}">
 
+{% include stylesheet.html %}
 {% include favicons.html %}
-
 {% include social.html %}
-
-<script>
-  window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)};ga.l=+new Date;
-  ga('create', 'UA-146052-10', 'getbootstrap.com');
-  ga('send', 'pageview');
-</script>
-<script async src='https://www.google-analytics.com/analytics.js'></script>
+{% include analytics.html %}
diff --git a/vendor/twbs/bootstrap/site/_includes/icons/bootstrap-stack.svg b/vendor/twbs/bootstrap/site/_includes/icons/bootstrap-stack.svg
new file mode 100644
index 000000000..079c881a0
--- /dev/null
+++ b/vendor/twbs/bootstrap/site/_includes/icons/bootstrap-stack.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %}{% if include.class %} class="{{ include.class }}"{% endif %} role="img" viewBox="0 0 1024 860" focusable="false"><title>Bootstrap</title><defs><linearGradient id="c" x1="50%" x2="50%" y1="0%" y2="100%"><stop offset="0%" stop-color="#5C24AE"/><stop offset="100%" stop-color="#30135A"/></linearGradient><path id="b" d="M355.967 242.807l-322 216.395c-44.275 29.754-44.275 78.443 0 108.197l322 216.395c44.275 29.754 116.725 29.754 161 0l322-216.395c44.275-29.754 44.275-78.443 0-108.197l-322-216.395c-44.275-29.754-116.725-29.754-161 0z"/><filter id="a" width="108%" height="112%" x="-4%" y="-4.3%" filterUnits="objectBoundingBox"><feOffset dy="10" in="SourceAlpha" result="shadowOffsetOuter1"/><feGaussianBlur in="shadowOffsetOuter1" result="shadowBlurOuter1" stdDeviation="10"/><feColorMatrix in="shadowBlurOuter1" values="0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.25 0"/></filter><linearGradient id="f" x1="50%" x2="50%" y1="-17.303%" y2="100%"><stop offset="0%" stop-color="#7331D4"/><stop offset="100%" stop-color="#461B84"/></linearGradient><path id="e" d="M355.967 132.807l-322 216.395c-44.275 29.754-44.275 78.443 0 108.197l322 216.395c44.275 29.754 116.725 29.754 161 0l322-216.395c44.275-29.754 44.275-78.443 0-108.197l-322-216.395c-44.275-29.754-116.725-29.754-161 0z"/><filter id="d" width="108%" height="112%" x="-4%" y="-4.3%" filterUnits="objectBoundingBox"><feOffset dy="10" in="SourceAlpha" result="shadowOffsetOuter1"/><feGaussianBlur in="shadowOffsetOuter1" result="shadowBlurOuter1" stdDeviation="10"/><feColorMatrix in="shadowBlurOuter1" values="0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.25 0"/></filter><linearGradient id="i" x1="50%" x2="50%" y1="0%" y2="100%"><stop offset="0%" stop-color="#905BDD"/><stop offset="100%" stop-color="#5521A0"/></linearGradient><path id="h" d="M355.967 22.807l-322 216.395c-44.275 29.754-44.275 78.443 0 108.197l322 216.395c44.275 29.754 116.725 29.754 161 0l322-216.395c44.275-29.754 44.275-78.443 0-108.197l-322-216.395c-44.275-29.754-116.725-29.754-161 0z"/><filter id="g" width="108%" height="112%" x="-4%" y="-4.3%" filterUnits="objectBoundingBox"><feOffset dy="10" in="SourceAlpha" result="shadowOffsetOuter1"/><feGaussianBlur in="shadowOffsetOuter1" result="shadowBlurOuter1" stdDeviation="10"/><feColorMatrix in="shadowBlurOuter1" values="0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.25 0"/></filter></defs><g fill="none"><g transform="translate(75 23)"><use fill="#000" filter="url(#a)" xlink:href="#b"/><use fill="url(#c)" xlink:href="#b"/></g><g transform="translate(75 23)"><use fill="#000" filter="url(#d)" xlink:href="#e"/><use fill="url(#f)" xlink:href="#e"/></g><g transform="translate(75 23)"><use fill="#000" filter="url(#g)" xlink:href="#h"/><use fill="url(#i)" xlink:href="#h"/></g><path fill="#FFF" d="M558.273 447.667L308.036 279.5l97.982-65.847c42.83-28.784 96.789-31.483 134.245-6.311 26.044 17.502 31.214 46.615 11.444 65.724l1.389.934c38.324-19.932 84.107-18.527 117.396 3.845 44.046 29.6 38.671 68.419-14.561 104.193l-97.658 65.629zM447.112 331.01l49.942-33.562c36.935-24.822 42.31-48.249 15.224-66.451-24.798-16.665-55.49-14.453-85.851 5.95l-59.641 40.081 80.326 53.982zm176.532 35.663c37.63-25.289 42.136-48.832 13.203-68.276-28.932-19.444-64.163-15.614-104.042 11.186l-58.789 39.508 87.92 59.084 61.708-41.502z"/></g></svg>
\ No newline at end of file
diff --git a/vendor/twbs/bootstrap/site/_includes/icons/bootstrap.svg b/vendor/twbs/bootstrap/site/_includes/icons/bootstrap.svg
index 816028bd8..ec6da152f 100644
--- a/vendor/twbs/bootstrap/site/_includes/icons/bootstrap.svg
+++ b/vendor/twbs/bootstrap/site/_includes/icons/bootstrap.svg
@@ -1 +1 @@
-<svg{% if include.class %} class="{{ include.class }}"{% endif %}{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %} viewbox="0 0 612 612" xmlns="http://www.w3.org/2000/svg" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg"{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %}{% if include.class %} class="{{ include.class }}"{% endif %} viewBox="0 0 612 612" role="img" focusable="false"><title>Bootstrap</title><path fill="currentColor" d="M510 8a94.3 94.3 0 0 1 94 94v408a94.3 94.3 0 0 1-94 94H102a94.3 94.3 0 0 1-94-94V102a94.3 94.3 0 0 1 94-94h408m0-8H102C45.9 0 0 45.9 0 102v408c0 56.1 45.9 102 102 102h408c56.1 0 102-45.9 102-102V102C612 45.9 566.1 0 510 0z"/><path fill="currentColor" d="M196.77 471.5V154.43h124.15c54.27 0 91 31.64 91 79.1 0 33-24.17 63.72-54.71 69.21v1.76c43.07 5.49 70.75 35.82 70.75 78 0 55.81-40 89-107.45 89zm39.55-180.4h63.28c46.8 0 72.29-18.68 72.29-53 0-31.42-21.53-48.78-60-48.78h-75.57zm78.22 145.46c47.68 0 72.73-19.34 72.73-56s-25.93-55.37-76.46-55.37h-74.49v111.4z"/></svg>
\ No newline at end of file
diff --git a/vendor/twbs/bootstrap/site/_includes/icons/download.svg b/vendor/twbs/bootstrap/site/_includes/icons/download.svg
index aa5f3f1be..ef8af7662 100644
--- a/vendor/twbs/bootstrap/site/_includes/icons/download.svg
+++ b/vendor/twbs/bootstrap/site/_includes/icons/download.svg
@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" focusable="false"{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %} fill="none" stroke="currentcolor" stroke-width="2"{% if include.class %} class="{{ include.class }}"{% endif %} viewBox="0 0 32 32" stroke-linecap="round" stroke-linejoin="round"><title>Download icon</title><path d="M9 22c-9 1-8-10 0-9C6 2 23 2 22 10c10-3 10 13 1 12m-12 4l5 4 5-4m-5-10v14"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg"{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %} fill="none" stroke="currentcolor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" aria-hidden="true"{% if include.class %} class="{{ include.class }}"{% endif %} viewBox="0 0 32 32" focusable="false"><title>Download</title><path d="M9 22c-9 1-8-10 0-9C6 2 23 2 22 10c10-3 10 13 1 12m-12 4l5 4 5-4m-5-10v14"/></svg>
\ No newline at end of file
diff --git a/vendor/twbs/bootstrap/site/_includes/icons/github.svg b/vendor/twbs/bootstrap/site/_includes/icons/github.svg
index 5d6ad1804..0243df5a2 100644
--- a/vendor/twbs/bootstrap/site/_includes/icons/github.svg
+++ b/vendor/twbs/bootstrap/site/_includes/icons/github.svg
@@ -1 +1 @@
-<svg{% if include.class %} class="{{ include.class }}"{% endif %} xmlns="http://www.w3.org/2000/svg" viewbox="0 0 512 499.36"{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %} focusable="false"><title>GitHub</title><path d="M256 0C114.64 0 0 114.61 0 256c0 113.09 73.34 209 175.08 242.9 12.8 2.35 17.47-5.56 17.47-12.34 0-6.08-.22-22.18-.35-43.54-71.2 15.49-86.2-34.34-86.2-34.34-11.64-29.57-28.42-37.45-28.42-37.45-23.27-15.84 1.73-15.55 1.73-15.55 25.69 1.81 39.21 26.38 39.21 26.38 22.84 39.12 59.92 27.82 74.5 21.27 2.33-16.54 8.94-27.82 16.25-34.22-56.84-6.43-116.6-28.43-116.6-126.49 0-27.95 10-50.8 26.35-68.69-2.63-6.48-11.42-32.5 2.51-67.75 0 0 21.49-6.88 70.4 26.24a242.65 242.65 0 0 1 128.18 0c48.87-33.13 70.33-26.24 70.33-26.24 14 35.25 5.18 61.27 2.55 67.75 16.41 17.9 26.31 40.75 26.31 68.69 0 98.35-59.85 120-116.88 126.32 9.19 7.9 17.38 23.53 17.38 47.41 0 34.22-.31 61.83-.31 70.23 0 6.85 4.61 14.81 17.6 12.31C438.72 464.97 512 369.08 512 256.02 512 114.62 397.37 0 256 0z" fill="currentColor" fill-rule="evenodd"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg"{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %}{% if include.class %} class="{{ include.class }}"{% endif %} viewBox="0 0 512 499.36" role="img" focusable="false"><title>GitHub</title><path fill="currentColor" fill-rule="evenodd" d="M256 0C114.64 0 0 114.61 0 256c0 113.09 73.34 209 175.08 242.9 12.8 2.35 17.47-5.56 17.47-12.34 0-6.08-.22-22.18-.35-43.54-71.2 15.49-86.2-34.34-86.2-34.34-11.64-29.57-28.42-37.45-28.42-37.45-23.27-15.84 1.73-15.55 1.73-15.55 25.69 1.81 39.21 26.38 39.21 26.38 22.84 39.12 59.92 27.82 74.5 21.27 2.33-16.54 8.94-27.82 16.25-34.22-56.84-6.43-116.6-28.43-116.6-126.49 0-27.95 10-50.8 26.35-68.69-2.63-6.48-11.42-32.5 2.51-67.75 0 0 21.49-6.88 70.4 26.24a242.65 242.65 0 0 1 128.18 0c48.87-33.13 70.33-26.24 70.33-26.24 14 35.25 5.18 61.27 2.55 67.75 16.41 17.9 26.31 40.75 26.31 68.69 0 98.35-59.85 120-116.88 126.32 9.19 7.9 17.38 23.53 17.38 47.41 0 34.22-.31 61.83-.31 70.23 0 6.85 4.61 14.81 17.6 12.31C438.72 464.97 512 369.08 512 256.02 512 114.62 397.37 0 256 0z"/></svg>
\ No newline at end of file
diff --git a/vendor/twbs/bootstrap/site/_includes/icons/import.svg b/vendor/twbs/bootstrap/site/_includes/icons/import.svg
index 0a9dbb269..28563c2be 100644
--- a/vendor/twbs/bootstrap/site/_includes/icons/import.svg
+++ b/vendor/twbs/bootstrap/site/_includes/icons/import.svg
@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" focusable="false"{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %} fill="none" stroke="currentcolor" stroke-width="2"{% if include.class %} class="{{ include.class }}"{% endif %} viewBox="0 0 32 32" stroke-linecap="round" stroke-linejoin="round"><title>Import icon</title><path d="M28 22v8H4v-8M16 4v20m-8-8l8 8 8-8"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg"{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %} fill="none" stroke="currentcolor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" aria-hidden="true"{% if include.class %} class="{{ include.class }}"{% endif %} viewBox="0 0 32 32" focusable="false"><title>Import</title><path d="M28 22v8H4v-8M16 4v20m-8-8l8 8 8-8"/></svg>
\ No newline at end of file
diff --git a/vendor/twbs/bootstrap/site/_includes/icons/lightning.svg b/vendor/twbs/bootstrap/site/_includes/icons/lightning.svg
index be6f475ef..bbcf24a76 100644
--- a/vendor/twbs/bootstrap/site/_includes/icons/lightning.svg
+++ b/vendor/twbs/bootstrap/site/_includes/icons/lightning.svg
@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" focusable="false"{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %} fill="none" stroke="currentcolor" stroke-width="2"{% if include.class %} class="{{ include.class }}"{% endif %} viewBox="0 0 32 32" stroke-linecap="round" stroke-linejoin="round"><title>Lightning icon</title><path d="M18 13l8-11L8 13l6 6-8 11 18-11z"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg"{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %} fill="none" stroke="currentcolor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" aria-hidden="true"{% if include.class %} class="{{ include.class }}"{% endif %} viewBox="0 0 32 32" focusable="false"><title>Lightning</title><path d="M18 13l8-11L8 13l6 6-8 11 18-11z"/></svg>
\ No newline at end of file
diff --git a/vendor/twbs/bootstrap/site/_includes/icons/menu.svg b/vendor/twbs/bootstrap/site/_includes/icons/menu.svg
index 03e15dc49..f6c47035a 100644
--- a/vendor/twbs/bootstrap/site/_includes/icons/menu.svg
+++ b/vendor/twbs/bootstrap/site/_includes/icons/menu.svg
@@ -1 +1 @@
-<svg{% if include.class %} class="{{ include.class }}"{% endif %} xmlns="http://www.w3.org/2000/svg" viewbox="0 0 30 30"{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %} focusable="false"><title>Menu</title><path stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-miterlimit="10" d="M4 7h22M4 15h22M4 23h22"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg"{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %}{% if include.class %} class="{{ include.class }}"{% endif %} viewBox="0 0 30 30" role="img" focusable="false"><title>Menu</title><path stroke="currentColor" stroke-linecap="round" stroke-miterlimit="10" stroke-width="2" d="M4 7h22M4 15h22M4 23h22"/></svg>
\ No newline at end of file
diff --git a/vendor/twbs/bootstrap/site/_includes/icons/opencollective.svg b/vendor/twbs/bootstrap/site/_includes/icons/opencollective.svg
new file mode 100644
index 000000000..090d41dff
--- /dev/null
+++ b/vendor/twbs/bootstrap/site/_includes/icons/opencollective.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg"{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %} fill="currentColor" fill-rule="evenodd"{% if include.class %} class="{{ include.class }}"{% endif %} viewBox="0 0 40 41" role="img" focusable="false"><title>Open Collective</title><path fill-opacity=".4" d="M32.8 21c0 2.4-.8 4.9-2 6.9l5.1 5.1c2.5-3.4 4.1-7.6 4.1-12 0-4.6-1.6-8.8-4-12.2L30.7 14c1.2 2 2 4.3 2 7z"/><path d="M20 33.7a12.8 12.8 0 0 1 0-25.6c2.6 0 5 .7 7 2.1L32 5a20 20 0 1 0 .1 31.9l-5-5.2a13 13 0 0 1-7 2z"/></svg>
\ No newline at end of file
diff --git a/vendor/twbs/bootstrap/site/_includes/icons/placeholder.svg b/vendor/twbs/bootstrap/site/_includes/icons/placeholder.svg
new file mode 100644
index 000000000..36883e82d
--- /dev/null
+++ b/vendor/twbs/bootstrap/site/_includes/icons/placeholder.svg
@@ -0,0 +1,35 @@
+{%- comment -%}
+  Usage: include icons/placeholder.svg args
+
+  args can be one of the following:
+    title: Used in the SVG `title` tag
+    text: The text to show in the image - default: 'width x height'
+    class: default: 'bd-placeholder-img'
+    color: The text color (foreground) - default: '#dee2e6'
+    background: The background color - default: '#868e96'
+    width: default: 100%
+    height: default: 180px
+{%- endcomment -%}
+
+{%- assign title = include.title | default: 'Placeholder' -%}
+{%- assign class = include.class | default: '' -%}
+{%- assign color = include.color | default: site.data.grays[2].hex -%}
+{%- assign background = include.background | default: site.data.grays[5].hex -%}
+{%- assign width = include.width | default: '100%' -%}
+{%- assign height = include.height | default: '180' -%}
+
+{%- if include.text -%}
+  {%- assign text = include.text -%}
+{%- else -%}
+  {%- assign text = width | append: 'x' | append: height -%}
+{%- endif -%}
+
+{%- capture svg -%}
+<svg class="bd-placeholder-img{% if class != '' %} {{ class }}{% endif %}" width="{{ width }}" height="{{ height }}" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMidYMid slice" focusable="false" role="img"{% if title != ' ' or text != ' ' %} aria-label="{% if title != ' ' %}{{ title }}{% if text != ' ' %}: {% endif %}{% endif %}{% if text != ' ' %}{{ text }}{% endif %}"{% endif %}>
+  {% if title != ' ' %}<title>{{ title }}</title>{% endif %}
+  <rect width="100%" height="100%" fill="{{ background }}"/>
+  {% if text != ' ' %}<text x="50%" y="50%" fill="{{ color }}" dy=".3em">{{ text }}</text>{% endif %}
+</svg>
+{%- endcapture -%}
+
+{{- svg | replace: '  ', '' | strip_newlines -}}
diff --git a/vendor/twbs/bootstrap/site/_includes/icons/slack.svg b/vendor/twbs/bootstrap/site/_includes/icons/slack.svg
index 3927fa458..d6ae455d8 100644
--- a/vendor/twbs/bootstrap/site/_includes/icons/slack.svg
+++ b/vendor/twbs/bootstrap/site/_includes/icons/slack.svg
@@ -1 +1 @@
-<svg{% if include.class %} class="{{ include.class }}"{% endif %} xmlns="http://www.w3.org/2000/svg" viewbox="0 0 512 512"{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %} focusable="false"><title>Slack</title><path fill="currentColor" d="M210.787 234.832l68.31-22.883 22.1 65.977-68.309 22.882z"/><path d="M490.54 185.6C437.7 9.59 361.6-31.34 185.6 21.46S-31.3 150.4 21.46 326.4 150.4 543.3 326.4 490.54 543.34 361.6 490.54 185.6zM401.7 299.8l-33.15 11.05 11.46 34.38c4.5 13.92-2.87 29.06-16.78 33.56-2.87.82-6.14 1.64-9 1.23a27.32 27.32 0 0 1-24.56-18l-11.46-34.38-68.36 22.92 11.46 34.38c4.5 13.92-2.87 29.06-16.78 33.56-2.87.82-6.14 1.64-9 1.23a27.32 27.32 0 0 1-24.56-18l-11.46-34.43-33.15 11.05c-2.87.82-6.14 1.64-9 1.23a27.32 27.32 0 0 1-24.56-18c-4.5-13.92 2.87-29.06 16.78-33.56l33.12-11.03-22.1-65.9-33.15 11.05c-2.87.82-6.14 1.64-9 1.23a27.32 27.32 0 0 1-24.56-18c-4.48-13.93 2.89-29.07 16.81-33.58l33.15-11.05-11.46-34.38c-4.5-13.92 2.87-29.06 16.78-33.56s29.06 2.87 33.56 16.78l11.46 34.38 68.36-22.92-11.46-34.38c-4.5-13.92 2.87-29.06 16.78-33.56s29.06 2.87 33.56 16.78l11.47 34.42 33.15-11.05c13.92-4.5 29.06 2.87 33.56 16.78s-2.87 29.06-16.78 33.56L329.7 194.6l22.1 65.9 33.15-11.05c13.92-4.5 29.06 2.87 33.56 16.78s-2.88 29.07-16.81 33.57z" fill="currentColor"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg"{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %}{% if include.class %} class="{{ include.class }}"{% endif %} viewBox="0 0 512 512" role="img" focusable="false"><title>Slack</title><path fill="currentColor" d="M210.787 234.832l68.31-22.883 22.1 65.977-68.309 22.882z"/><path fill="currentColor" d="M490.54 185.6C437.7 9.59 361.6-31.34 185.6 21.46S-31.3 150.4 21.46 326.4 150.4 543.3 326.4 490.54 543.34 361.6 490.54 185.6zM401.7 299.8l-33.15 11.05 11.46 34.38c4.5 13.92-2.87 29.06-16.78 33.56-2.87.82-6.14 1.64-9 1.23a27.32 27.32 0 0 1-24.56-18l-11.46-34.38-68.36 22.92 11.46 34.38c4.5 13.92-2.87 29.06-16.78 33.56-2.87.82-6.14 1.64-9 1.23a27.32 27.32 0 0 1-24.56-18l-11.46-34.43-33.15 11.05c-2.87.82-6.14 1.64-9 1.23a27.32 27.32 0 0 1-24.56-18c-4.5-13.92 2.87-29.06 16.78-33.56l33.12-11.03-22.1-65.9-33.15 11.05c-2.87.82-6.14 1.64-9 1.23a27.32 27.32 0 0 1-24.56-18c-4.48-13.93 2.89-29.07 16.81-33.58l33.15-11.05-11.46-34.38c-4.5-13.92 2.87-29.06 16.78-33.56s29.06 2.87 33.56 16.78l11.46 34.38 68.36-22.92-11.46-34.38c-4.5-13.92 2.87-29.06 16.78-33.56s29.06 2.87 33.56 16.78l11.47 34.42 33.15-11.05c13.92-4.5 29.06 2.87 33.56 16.78s-2.87 29.06-16.78 33.56L329.7 194.6l22.1 65.9 33.15-11.05c13.92-4.5 29.06 2.87 33.56 16.78s-2.88 29.07-16.81 33.57z"/></svg>
\ No newline at end of file
diff --git a/vendor/twbs/bootstrap/site/_includes/icons/twitter.svg b/vendor/twbs/bootstrap/site/_includes/icons/twitter.svg
index 450c393b9..7b838be58 100644
--- a/vendor/twbs/bootstrap/site/_includes/icons/twitter.svg
+++ b/vendor/twbs/bootstrap/site/_includes/icons/twitter.svg
@@ -1 +1 @@
-<svg{% if include.class %} class="{{ include.class }}"{% endif %} xmlns="http://www.w3.org/2000/svg" viewbox="0 0 512 416.32"{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %} focusable="false"><title>Twitter</title><path d="M160.83 416.32c193.2 0 298.92-160.22 298.92-298.92 0-4.51 0-9-.2-13.52A214 214 0 0 0 512 49.38a212.93 212.93 0 0 1-60.44 16.6 105.7 105.7 0 0 0 46.3-58.19 209 209 0 0 1-66.79 25.37 105.09 105.09 0 0 0-181.73 71.91 116.12 116.12 0 0 0 2.66 24c-87.28-4.3-164.73-46.3-216.56-109.82A105.48 105.48 0 0 0 68 159.6a106.27 106.27 0 0 1-47.53-13.11v1.43a105.28 105.28 0 0 0 84.21 103.06 105.67 105.67 0 0 1-47.33 1.84 105.06 105.06 0 0 0 98.14 72.94A210.72 210.72 0 0 1 25 370.84a202.17 202.17 0 0 1-25-1.43 298.85 298.85 0 0 0 160.83 46.92" fill="currentColor"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg"{% if include.width %} width="{{ include.width }}"{% endif %}{% if include.height %} height="{{ include.height }}"{% endif %}{% if include.class %} class="{{ include.class }}"{% endif %} viewBox="0 0 512 416.32" role="img" focusable="false"><title>Twitter</title><path fill="currentColor" d="M160.83 416.32c193.2 0 298.92-160.22 298.92-298.92 0-4.51 0-9-.2-13.52A214 214 0 0 0 512 49.38a212.93 212.93 0 0 1-60.44 16.6 105.7 105.7 0 0 0 46.3-58.19 209 209 0 0 1-66.79 25.37 105.09 105.09 0 0 0-181.73 71.91 116.12 116.12 0 0 0 2.66 24c-87.28-4.3-164.73-46.3-216.56-109.82A105.48 105.48 0 0 0 68 159.6a106.27 106.27 0 0 1-47.53-13.11v1.43a105.28 105.28 0 0 0 84.21 103.06 105.67 105.67 0 0 1-47.33 1.84 105.06 105.06 0 0 0 98.14 72.94A210.72 210.72 0 0 1 25 370.84a202.17 202.17 0 0 1-25-1.43 298.85 298.85 0 0 0 160.83 46.92"/></svg>
\ No newline at end of file
diff --git a/vendor/twbs/bootstrap/site/_includes/scripts.html b/vendor/twbs/bootstrap/site/_includes/scripts.html
index 92c6d01cd..044dd3368 100644
--- a/vendor/twbs/bootstrap/site/_includes/scripts.html
+++ b/vendor/twbs/bootstrap/site/_includes/scripts.html
@@ -1,26 +1,23 @@
 <script src="{{ site.cdn.jquery }}" integrity="{{ site.cdn.jquery_hash }}" crossorigin="anonymous"></script>
-<script>window.jQuery || document.write('<script src="{{ site.baseurl }}/assets/js/vendor/jquery-slim.min.js"><\/script>')</script>
+<script>window.jQuery || document.write('<script src="{{ site.baseurl }}/docs/{{ site.docs_version }}/assets/js/vendor/jquery-slim.min.js"><\/script>')</script>
 
-<script src="{{ site.baseurl }}/docs/{{ site.docs_version }}/assets/js/vendor/popper.min.js"{% if site.github %} integrity="{{ site.cdn.popper_hash }}" crossorigin="anonymous"{% endif %}></script>
-
-{%- if site.github -%}
-  <script src="{{ site.baseurl }}/docs/{{ site.docs_version }}/dist/js/bootstrap.min.js" integrity="{{ site.cdn.js_hash }}" crossorigin="anonymous"></script>
+{%- if jekyll.environment == "production" -%}
+  <script src="{{ site.baseurl }}/docs/{{ site.docs_version }}/dist/js/bootstrap.bundle.min.js" integrity="{{ site.cdn.js_bundle_hash }}" crossorigin="anonymous"></script>
 {%- else -%}
-  <script src="{{ site.baseurl }}/docs/{{ site.docs_version }}/dist/js/bootstrap.js"></script>
+  <script src="{{ site.baseurl }}/docs/{{ site.docs_version }}/dist/js/bootstrap.bundle.js"></script>
 {%- endif -%}
 
 {%- if page.layout == "docs" -%}
 <script src="https://cdn.jsdelivr.net/npm/docsearch.js@2/dist/cdn/docsearch.min.js"></script>
 {%- endif -%}
 
-{%- if site.github -%}
+{%- if jekyll.environment == "production" -%}
   <script src="{{ site.baseurl }}/docs/{{ site.docs_version }}/assets/js/docs.min.js"></script>
 {%- else -%}
   <script src="{{ site.baseurl }}/docs/{{ site.docs_version }}/assets/js/vendor/anchor.min.js"></script>
   <script src="{{ site.baseurl }}/docs/{{ site.docs_version }}/assets/js/vendor/clipboard.min.js"></script>
-  <script src="{{ site.baseurl }}/docs/{{ site.docs_version }}/assets/js/vendor/holder.min.js"></script>
+  <script src="{{ site.baseurl }}/docs/{{ site.docs_version }}/assets/js/vendor/bs-custom-file-input.min.js"></script>
   <script src="{{ site.baseurl }}/docs/{{ site.docs_version }}/assets/js/src/application.js"></script>
   <script src="{{ site.baseurl }}/docs/{{ site.docs_version }}/assets/js/src/search.js"></script>
   <script src="{{ site.baseurl }}/docs/{{ site.docs_version }}/assets/js/src/ie-emulation-modes-warning.js"></script>
-  <script src="{{ site.baseurl }}/docs/{{ site.docs_version }}/assets/js/src/pwa.js"></script>
 {%- endif -%}
diff --git a/vendor/twbs/bootstrap/site/_includes/skippy.html b/vendor/twbs/bootstrap/site/_includes/skippy.html
index 2c73089bc..ec7507d53 100644
--- a/vendor/twbs/bootstrap/site/_includes/skippy.html
+++ b/vendor/twbs/bootstrap/site/_includes/skippy.html
@@ -1,5 +1,3 @@
-<a id="skippy" class="sr-only sr-only-focusable" href="#content">
-  <div class="container">
-    <span class="skiplink-text">Skip to main content</span>
-  </div>
+<a class="skippy sr-only sr-only-focusable" href="#content">
+  <span class="skippy-text">Skip to main content</span>
 </a>
diff --git a/vendor/twbs/bootstrap/site/_includes/stylesheet.html b/vendor/twbs/bootstrap/site/_includes/stylesheet.html
new file mode 100644
index 000000000..3846f9fe1
--- /dev/null
+++ b/vendor/twbs/bootstrap/site/_includes/stylesheet.html
@@ -0,0 +1,16 @@
+<!-- Bootstrap core CSS -->
+{%- if jekyll.environment == "production" %}
+<link href="{{ site.baseurl }}/docs/{{ site.docs_version }}/dist/css/bootstrap.min.css" rel="stylesheet" integrity="{{ site.cdn.css_hash }}" crossorigin="anonymous">
+{% else %}
+<link href="{{ site.baseurl }}/docs/{{ site.docs_version }}/dist/css/bootstrap.css" rel="stylesheet">
+{% endif -%}
+
+{%- if page.layout == "docs" or page.layout != "examples" -%}
+<!-- Documentation extras -->
+{% if page.layout == "docs" %}
+<link href="https://cdn.jsdelivr.net/npm/docsearch.js@2/dist/cdn/docsearch.min.css" rel="stylesheet">
+{% endif %}
+{% if page.layout != "examples" %}
+<link href="{{ site.baseurl }}/docs/{{ site.docs_version }}/assets/css/docs.min.css" rel="stylesheet">
+{% endif %}
+{%- endif -%}