upgrade to bootstrap 5.0.1 and first batch of fixes

3 files changed, 0 insertions, 1126 deletions

diff --git a/vendor/twbs/bootstrap/site/content/docs/4.6/layout/grid.md b/vendor/twbs/bootstrap/site/content/docs/4.6/layout/grid.md
deleted file mode 100644
index 6281661c2..000000000
--- a/vendor/twbs/bootstrap/site/content/docs/4.6/layout/grid.md
+++ /dev/null
@@ -1,824 +0,0 @@
----
-layout: docs
-title: Grid system
-description: Use our powerful mobile-first flexbox grid to build layouts of all shapes and sizes thanks to a twelve column system, five default responsive tiers, Sass variables and mixins, and dozens of predefined classes.
-group: layout
-toc: true
----
-
-## How it works
-
-Bootstrap's grid system uses a series of containers, rows, and columns to layout and align content. It's built with [flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Flexible_Box_Layout/Basic_Concepts_of_Flexbox) and is fully responsive. Below is an example and an in-depth look at how the grid comes together.
-
-**New to or unfamiliar with flexbox?** [Read this CSS Tricks flexbox guide](https://css-tricks.com/snippets/css/a-guide-to-flexbox/#flexbox-background) for background, terminology, guidelines, and code snippets.
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row">
-    <div class="col-sm">
-      One of three columns
-    </div>
-    <div class="col-sm">
-      One of three columns
-    </div>
-    <div class="col-sm">
-      One of three columns
-    </div>
-  </div>
-</div>
-{{< /example >}}
-
-The above example creates three equal-width columns on small, medium, large, and extra large devices using our predefined grid classes. Those columns are centered in the page with the parent `.container`.
-
-Breaking it down, here's how it works:
-
-- Containers provide a means to center and horizontally pad your site's contents. Use `.container` for a responsive pixel width or `.container-fluid` for `width: 100%` across all viewport and device sizes.
-- Rows are wrappers for columns. Each column has horizontal `padding` (called a gutter) for controlling the space between them. This `padding` is then counteracted on the rows with negative margins. This way, all the content in your columns is visually aligned down the left side.
-- In a grid layout, content must be placed within columns and only columns may be immediate children of rows.
-- Thanks to flexbox, grid columns without a specified `width` will automatically layout as equal width columns. For example, four instances of `.col-sm` will each automatically be 25% wide from the small breakpoint and up. See the [auto-layout columns](#auto-layout-columns) section for more examples.
-- Column classes indicate the number of columns you'd like to use out of the possible 12 per row. So, if you want three equal-width columns across, you can use `.col-4`.
-- Column `width`s are set in percentages, so they're always fluid and sized relative to their parent element.
-- Columns have horizontal `padding` to create the gutters between individual columns, however, you can remove the `margin` from rows and `padding` from columns with `.no-gutters` on the `.row`.
-- To make the grid responsive, there are five grid breakpoints, one for each [responsive breakpoint]({{< docsref "/layout/overview#responsive-breakpoints" >}}): all breakpoints (extra small), small, medium, large, and extra large.
-- Grid breakpoints are based on minimum width media queries, meaning **they apply to that one breakpoint and all those above it** (e.g., `.col-sm-4` applies to small, medium, large, and extra large devices, but not the first `xs` breakpoint).
-- You can use predefined grid classes (like `.col-4`) or [Sass mixins](#sass-mixins) for more semantic markup.
-
-Be aware of the limitations and [bugs around flexbox](https://github.com/philipwalton/flexbugs), like the [inability to use some HTML elements as flex containers](https://github.com/philipwalton/flexbugs#flexbug-9).
-
-## Grid options
-
-While Bootstrap uses `em`s or `rem`s for defining most sizes, `px`s are used for grid breakpoints and container widths. This is because the viewport width is in pixels and does not change with the [font size](https://drafts.csswg.org/mediaqueries-3/#units).
-
-See how aspects of the Bootstrap grid system work across multiple devices with a handy table.
-
-<table class="table table-bordered table-striped">
-  <thead>
-    <tr>
-      <th></th>
-      <th class="text-center">
-        Extra small<br>
-        <small>&lt;576px</small>
-      </th>
-      <th class="text-center">
-        Small<br>
-        <small>&ge;576px</small>
-      </th>
-      <th class="text-center">
-        Medium<br>
-        <small>&ge;768px</small>
-      </th>
-      <th class="text-center">
-        Large<br>
-        <small>&ge;992px</small>
-      </th>
-      <th class="text-center">
-        Extra large<br>
-        <small>&ge;1200px</small>
-      </th>
-    </tr>
-  </thead>
-  <tbody>
-    <tr>
-      <th class="text-nowrap" scope="row">Max container width</th>
-      <td>None (auto)</td>
-      <td>540px</td>
-      <td>720px</td>
-      <td>960px</td>
-      <td>1140px</td>
-    </tr>
-    <tr>
-      <th class="text-nowrap" scope="row">Class prefix</th>
-      <td><code>.col-</code></td>
-      <td><code>.col-sm-</code></td>
-      <td><code>.col-md-</code></td>
-      <td><code>.col-lg-</code></td>
-      <td><code>.col-xl-</code></td>
-    </tr>
-    <tr>
-      <th class="text-nowrap" scope="row"># of columns</th>
-      <td colspan="5">12</td>
-    </tr>
-    <tr>
-      <th class="text-nowrap" scope="row">Gutter width</th>
-      <td colspan="5">30px (15px on each side of a column)</td>
-    </tr>
-    <tr>
-      <th class="text-nowrap" scope="row">Nestable</th>
-      <td colspan="5">Yes</td>
-    </tr>
-    <tr>
-      <th class="text-nowrap" scope="row">Column ordering</th>
-      <td colspan="5">Yes</td>
-    </tr>
-  </tbody>
-</table>
-
-## Auto-layout columns
-
-Utilize breakpoint-specific column classes for easy column sizing without an explicit numbered class like `.col-sm-6`.
-
-### Equal-width
-
-For example, here are two grid layouts that apply to every device and viewport, from `xs` to `xl`. Add any number of unit-less classes for each breakpoint you need and every column will be the same width.
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row">
-    <div class="col">
-      1 of 2
-    </div>
-    <div class="col">
-      2 of 2
-    </div>
-  </div>
-  <div class="row">
-    <div class="col">
-      1 of 3
-    </div>
-    <div class="col">
-      2 of 3
-    </div>
-    <div class="col">
-      3 of 3
-    </div>
-  </div>
-</div>
-{{< /example >}}
-
-### Equal-width multi-line
-
-Create equal-width columns that span multiple lines by inserting a `.w-100` where you want the columns to break to a new line. Make the breaks responsive by mixing `.w-100` with some [responsive display utilities]({{< docsref "/utilities/display" >}}).
-
-There was a [Safari flexbox bug](https://github.com/philipwalton/flexbugs#flexbug-11) that prevented this from working without an explicit `flex-basis` or `border`. There are workarounds for older browser versions, but they shouldn't be necessary if your target browsers don't fall into the buggy versions.
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row">
-    <div class="col">col</div>
-    <div class="col">col</div>
-    <div class="w-100"></div>
-    <div class="col">col</div>
-    <div class="col">col</div>
-  </div>
-</div>
-{{< /example >}}
-
-### Setting one column width
-
-Auto-layout for flexbox grid columns also means you can set the width of one column and have the sibling columns automatically resize around it. You may use predefined grid classes (as shown below), grid mixins, or inline widths. Note that the other columns will resize no matter the width of the center column.
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row">
-    <div class="col">
-      1 of 3
-    </div>
-    <div class="col-6">
-      2 of 3 (wider)
-    </div>
-    <div class="col">
-      3 of 3
-    </div>
-  </div>
-  <div class="row">
-    <div class="col">
-      1 of 3
-    </div>
-    <div class="col-5">
-      2 of 3 (wider)
-    </div>
-    <div class="col">
-      3 of 3
-    </div>
-  </div>
-</div>
-{{< /example >}}
-
-### Variable width content
-
-Use `col-{breakpoint}-auto` classes to size columns based on the natural width of their content.
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row justify-content-md-center">
-    <div class="col col-lg-2">
-      1 of 3
-    </div>
-    <div class="col-md-auto">
-      Variable width content
-    </div>
-    <div class="col col-lg-2">
-      3 of 3
-    </div>
-  </div>
-  <div class="row">
-    <div class="col">
-      1 of 3
-    </div>
-    <div class="col-md-auto">
-      Variable width content
-    </div>
-    <div class="col col-lg-2">
-      3 of 3
-    </div>
-  </div>
-</div>
-{{< /example >}}
-
-## Responsive classes
-
-Bootstrap's grid includes five tiers of predefined classes for building complex responsive layouts. Customize the size of your columns on extra small, small, medium, large, or extra large devices however you see fit.
-
-### All breakpoints
-
-For grids that are the same from the smallest of devices to the largest, use the `.col` and `.col-*` classes. Specify a numbered class when you need a particularly sized column; otherwise, feel free to stick to `.col`.
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row">
-    <div class="col">col</div>
-    <div class="col">col</div>
-    <div class="col">col</div>
-    <div class="col">col</div>
-  </div>
-  <div class="row">
-    <div class="col-8">col-8</div>
-    <div class="col-4">col-4</div>
-  </div>
-</div>
-{{< /example >}}
-
-### Stacked to horizontal
-
-Using a single set of `.col-sm-*` classes, you can create a basic grid system that starts out stacked and becomes horizontal at the small breakpoint (`sm`).
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row">
-    <div class="col-sm-8">col-sm-8</div>
-    <div class="col-sm-4">col-sm-4</div>
-  </div>
-  <div class="row">
-    <div class="col-sm">col-sm</div>
-    <div class="col-sm">col-sm</div>
-    <div class="col-sm">col-sm</div>
-  </div>
-</div>
-{{< /example >}}
-
-### Mix and match
-
-Don't want your columns to simply stack in some grid tiers? Use a combination of different classes for each tier as needed. See the example below for a better idea of how it all works.
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <!-- Stack the columns on mobile by making one full-width and the other half-width -->
-  <div class="row">
-    <div class="col-md-8">.col-md-8</div>
-    <div class="col-6 col-md-4">.col-6 .col-md-4</div>
-  </div>
-
-  <!-- Columns start at 50% wide on mobile and bump up to 33.3% wide on desktop -->
-  <div class="row">
-    <div class="col-6 col-md-4">.col-6 .col-md-4</div>
-    <div class="col-6 col-md-4">.col-6 .col-md-4</div>
-    <div class="col-6 col-md-4">.col-6 .col-md-4</div>
-  </div>
-
-  <!-- Columns are always 50% wide, on mobile and desktop -->
-  <div class="row">
-    <div class="col-6">.col-6</div>
-    <div class="col-6">.col-6</div>
-  </div>
-</div>
-{{< /example >}}
-
-### Gutters
-
-Gutters can be responsively adjusted by breakpoint-specific padding and negative margin utility classes. To change the gutters in a given row, pair a negative margin utility on the `.row` and matching padding utilities on the `.col`s. The `.container` or `.container-fluid` parent may need to be adjusted too to avoid unwanted overflow, using again matching padding utility.
-
-Here's an example of customizing the Bootstrap grid at the large (`lg`) breakpoint and above. We've increased the `.col` padding with `.px-lg-5`, counteracted that with `.mx-lg-n5` on the parent `.row` and then adjusted the `.container` wrapper with `.px-lg-5`.
-
-{{< example >}}
-<div class="container px-lg-5">
-  <div class="row mx-lg-n5">
-    <div class="col py-3 px-lg-5 border bg-light">Custom column padding</div>
-    <div class="col py-3 px-lg-5 border bg-light">Custom column padding</div>
-  </div>
-</div>
-{{< /example >}}
-
-### Row columns
-
-Use the responsive `.row-cols-*` classes to quickly set the number of columns that best render your content and layout. Whereas normal `.col-*` classes apply to the individual columns (e.g., `.col-md-4`), the row columns classes are set on the parent `.row` as a shortcut.
-
-Use these row columns classes to quickly create basic grid layouts or to control your card layouts.
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row row-cols-2">
-    <div class="col">Column</div>
-    <div class="col">Column</div>
-    <div class="col">Column</div>
-    <div class="col">Column</div>
-  </div>
-</div>
-{{< /example >}}
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row row-cols-3">
-    <div class="col">Column</div>
-    <div class="col">Column</div>
-    <div class="col">Column</div>
-    <div class="col">Column</div>
-  </div>
-</div>
-{{< /example >}}
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row row-cols-4">
-    <div class="col">Column</div>
-    <div class="col">Column</div>
-    <div class="col">Column</div>
-    <div class="col">Column</div>
-  </div>
-</div>
-{{< /example >}}
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row row-cols-4">
-    <div class="col">Column</div>
-    <div class="col">Column</div>
-    <div class="col-6">Column</div>
-    <div class="col">Column</div>
-  </div>
-</div>
-{{< /example >}}
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row row-cols-1 row-cols-sm-2 row-cols-md-4">
-    <div class="col">Column</div>
-    <div class="col">Column</div>
-    <div class="col">Column</div>
-    <div class="col">Column</div>
-  </div>
-</div>
-{{< /example >}}
-
-You can also use the accompanying Sass mixin, `row-cols()`:
-
-```scss
-.element {
-  // Three columns to start
-  @include row-cols(3);
-
-  // Five columns from medium breakpoint up
-  @include media-breakpoint-up(md) {
-    @include row-cols(5);
-  }
-}
-```
-
-## Alignment
-
-Use flexbox alignment utilities to vertically and horizontally align columns. **Internet Explorer 10-11 do not support vertical alignment of flex items when the flex container has a `min-height` as shown below.** [See Flexbugs #3 for more details.](https://github.com/philipwalton/flexbugs#flexbug-3)
-
-### Vertical alignment
-
-{{< example class="bd-example-row bd-example-row-flex-cols" >}}
-<div class="container">
-  <div class="row align-items-start">
-    <div class="col">
-      One of three columns
-    </div>
-    <div class="col">
-      One of three columns
-    </div>
-    <div class="col">
-      One of three columns
-    </div>
-  </div>
-  <div class="row align-items-center">
-    <div class="col">
-      One of three columns
-    </div>
-    <div class="col">
-      One of three columns
-    </div>
-    <div class="col">
-      One of three columns
-    </div>
-  </div>
-  <div class="row align-items-end">
-    <div class="col">
-      One of three columns
-    </div>
-    <div class="col">
-      One of three columns
-    </div>
-    <div class="col">
-      One of three columns
-    </div>
-  </div>
-</div>
-{{< /example >}}
-
-{{< example class="bd-example-row bd-example-row-flex-cols" >}}
-<div class="container">
-  <div class="row">
-    <div class="col align-self-start">
-      One of three columns
-    </div>
-    <div class="col align-self-center">
-      One of three columns
-    </div>
-    <div class="col align-self-end">
-      One of three columns
-    </div>
-  </div>
-</div>
-{{< /example >}}
-
-### Horizontal alignment
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row justify-content-start">
-    <div class="col-4">
-      One of two columns
-    </div>
-    <div class="col-4">
-      One of two columns
-    </div>
-  </div>
-  <div class="row justify-content-center">
-    <div class="col-4">
-      One of two columns
-    </div>
-    <div class="col-4">
-      One of two columns
-    </div>
-  </div>
-  <div class="row justify-content-end">
-    <div class="col-4">
-      One of two columns
-    </div>
-    <div class="col-4">
-      One of two columns
-    </div>
-  </div>
-  <div class="row justify-content-around">
-    <div class="col-4">
-      One of two columns
-    </div>
-    <div class="col-4">
-      One of two columns
-    </div>
-  </div>
-  <div class="row justify-content-between">
-    <div class="col-4">
-      One of two columns
-    </div>
-    <div class="col-4">
-      One of two columns
-    </div>
-  </div>
-</div>
-{{< /example >}}
-
-### No gutters
-
-The gutters between columns in our predefined grid classes can be removed with `.no-gutters`. This removes the negative `margin`s from `.row` and the horizontal `padding` from all immediate children columns.
-
-Here's the source code for creating these styles. Note that column overrides are scoped to only the first children columns and are targeted via [attribute selector](https://developer.mozilla.org/en-US/docs/Web/CSS/Attribute_selectors). While this generates a more specific selector, column padding can still be further customized with [spacing utilities]({{< docsref "/utilities/spacing" >}}).
-
-**Need an edge-to-edge design?** Drop the parent `.container` or `.container-fluid`.
-
-```scss
-.no-gutters {
-  margin-right: 0;
-  margin-left: 0;
-
-  > .col,
-  > [class*="col-"] {
-    padding-right: 0;
-    padding-left: 0;
-  }
-}
-```
-
-In practice, here's how it looks. Note you can continue to use this with all other predefined grid classes (including column widths, responsive tiers, reorders, and more).
-
-{{< example class="bd-example-row" >}}
-<div class="row no-gutters">
-  <div class="col-sm-6 col-md-8">.col-sm-6 .col-md-8</div>
-  <div class="col-6 col-md-4">.col-6 .col-md-4</div>
-</div>
-{{< /example >}}
-
-### Column wrapping
-
-If more than 12 columns are placed within a single row, each group of extra columns will, as one unit, wrap onto a new line.
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row">
-    <div class="col-9">.col-9</div>
-    <div class="col-4">.col-4<br>Since 9 + 4 = 13 &gt; 12, this 4-column-wide div gets wrapped onto a new line as one contiguous unit.</div>
-    <div class="col-6">.col-6<br>Subsequent columns continue along the new line.</div>
-  </div>
-</div>
-{{< /example >}}
-
-### Column breaks
-
-Breaking columns to a new line in flexbox requires a small hack: add an element with `width: 100%` wherever you want to wrap your columns to a new line. Normally this is accomplished with multiple `.row`s, but not every implementation method can account for this.
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row">
-    <div class="col-6 col-sm-3">.col-6 .col-sm-3</div>
-    <div class="col-6 col-sm-3">.col-6 .col-sm-3</div>
-
-    <!-- Force next columns to break to new line -->
-    <div class="w-100"></div>
-
-    <div class="col-6 col-sm-3">.col-6 .col-sm-3</div>
-    <div class="col-6 col-sm-3">.col-6 .col-sm-3</div>
-  </div>
-</div>
-{{< /example >}}
-
-You may also apply this break at specific breakpoints with our [responsive display utilities]({{< docsref "/utilities/display" >}}).
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row">
-    <div class="col-6 col-sm-4">.col-6 .col-sm-4</div>
-    <div class="col-6 col-sm-4">.col-6 .col-sm-4</div>
-
-    <!-- Force next columns to break to new line at md breakpoint and up -->
-    <div class="w-100 d-none d-md-block"></div>
-
-    <div class="col-6 col-sm-4">.col-6 .col-sm-4</div>
-    <div class="col-6 col-sm-4">.col-6 .col-sm-4</div>
-  </div>
-</div>
-{{< /example >}}
-
-## Reordering
-
-### Order classes
-
-Use `.order-` classes for controlling the **visual order** of your content. These classes are responsive, so you can set the `order` by breakpoint (e.g., `.order-1.order-md-2`). Includes support for `1` through `12` across all five grid tiers.
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row">
-    <div class="col">
-      First in DOM, no order applied
-    </div>
-    <div class="col order-12">
-      Second in DOM, with a larger order
-    </div>
-    <div class="col order-1">
-      Third in DOM, with an order of 1
-    </div>
-  </div>
-</div>
-{{< /example >}}
-
-There are also responsive `.order-first` and `.order-last` classes that change the `order` of an element by applying `order: -1` and `order: 13` (`order: $columns + 1`), respectively. These classes can also be intermixed with the numbered `.order-*` classes as needed.
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row">
-    <div class="col order-last">
-      First in DOM, ordered last
-    </div>
-    <div class="col">
-      Second in DOM, unordered
-    </div>
-    <div class="col order-first">
-      Third in DOM, ordered first
-    </div>
-  </div>
-</div>
-{{< /example >}}
-
-### Offsetting columns
-
-You can offset grid columns in two ways: our responsive `.offset-` grid classes and our [margin utilities]({{< docsref "/utilities/spacing" >}}). Grid classes are sized to match columns while margins are more useful for quick layouts where the width of the offset is variable.
-
-#### Offset classes
-
-Move columns to the right using `.offset-md-*` classes. These classes increase the left margin of a column by `*` columns. For example, `.offset-md-4` moves `.col-md-4` over four columns.
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row">
-    <div class="col-md-4">.col-md-4</div>
-    <div class="col-md-4 offset-md-4">.col-md-4 .offset-md-4</div>
-  </div>
-  <div class="row">
-    <div class="col-md-3 offset-md-3">.col-md-3 .offset-md-3</div>
-    <div class="col-md-3 offset-md-3">.col-md-3 .offset-md-3</div>
-  </div>
-  <div class="row">
-    <div class="col-md-6 offset-md-3">.col-md-6 .offset-md-3</div>
-  </div>
-</div>
-{{< /example >}}
-
-In addition to column clearing at responsive breakpoints, you may need to reset offsets. See this in action in [the grid example]({{< docsref "/examples/grid" >}}).
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row">
-    <div class="col-sm-5 col-md-6">.col-sm-5 .col-md-6</div>
-    <div class="col-sm-5 offset-sm-2 col-md-6 offset-md-0">.col-sm-5 .offset-sm-2 .col-md-6 .offset-md-0</div>
-  </div>
-  <div class="row">
-    <div class="col-sm-6 col-md-5 col-lg-6">.col-sm-6 .col-md-5 .col-lg-6</div>
-    <div class="col-sm-6 col-md-5 offset-md-2 col-lg-6 offset-lg-0">.col-sm-6 .col-md-5 .offset-md-2 .col-lg-6 .offset-lg-0</div>
-  </div>
-</div>
-{{< /example >}}
-
-#### Margin utilities
-
-With the move to flexbox in v4, you can use margin utilities like `.mr-auto` to force sibling columns away from one another.
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row">
-    <div class="col-md-4">.col-md-4</div>
-    <div class="col-md-4 ml-auto">.col-md-4 .ml-auto</div>
-  </div>
-  <div class="row">
-    <div class="col-md-3 ml-md-auto">.col-md-3 .ml-md-auto</div>
-    <div class="col-md-3 ml-md-auto">.col-md-3 .ml-md-auto</div>
-  </div>
-  <div class="row">
-    <div class="col-auto mr-auto">.col-auto .mr-auto</div>
-    <div class="col-auto">.col-auto</div>
-  </div>
-</div>
-{{< /example >}}
-
-## Nesting
-
-To nest your content with the default grid, add a new `.row` and set of `.col-sm-*` columns within an existing `.col-sm-*` column. Nested rows should include a set of columns that add up to 12 or fewer (it is not required that you use all 12 available columns).
-
-{{< example class="bd-example-row" >}}
-<div class="container">
-  <div class="row">
-    <div class="col-sm-9">
-      Level 1: .col-sm-9
-      <div class="row">
-        <div class="col-8 col-sm-6">
-          Level 2: .col-8 .col-sm-6
-        </div>
-        <div class="col-4 col-sm-6">
-          Level 2: .col-4 .col-sm-6
-        </div>
-      </div>
-    </div>
-  </div>
-</div>
-{{< /example >}}
-
-## Sass mixins
-
-When using Bootstrap's source Sass files, you have the option of using Sass variables and mixins to create custom, semantic, and responsive page layouts. Our predefined grid classes use these same variables and mixins to provide a whole suite of ready-to-use classes for fast responsive layouts.
-
-### Variables
-
-Variables and maps determine the number of columns, the gutter width, and the media query point at which to begin floating columns. We use these to generate the predefined grid classes documented above, as well as for the custom mixins listed below.
-
-```scss
-$grid-columns:      12;
-$grid-gutter-width: 30px;
-
-$grid-breakpoints: (
-  // Extra small screen / phone
-  xs: 0,
-  // Small screen / phone
-  sm: 576px,
-  // Medium screen / tablet
-  md: 768px,
-  // Large screen / desktop
-  lg: 992px,
-  // Extra large screen / wide desktop
-  xl: 1200px
-);
-
-$container-max-widths: (
-  sm: 540px,
-  md: 720px,
-  lg: 960px,
-  xl: 1140px
-);
-```
-
-### Mixins
-
-Mixins are used in conjunction with the grid variables to generate semantic CSS for individual grid columns.
-
-```scss
-// Creates a wrapper for a series of columns
-@include make-row();
-
-// Make the element grid-ready (applying everything but the width)
-@include make-col-ready();
-@include make-col($size, $columns: $grid-columns);
-
-// Get fancy by offsetting, or changing the sort order
-@include make-col-offset($size, $columns: $grid-columns);
-```
-
-### Example usage
-
-You can modify the variables to your own custom values, or just use the mixins with their default values. Here's an example of using the default settings to create a two-column layout with a gap between.
-
-```scss
-.example-container {
-  @include make-container();
-  // Make sure to define this width after the mixin to override
-  // `width: 100%` generated by `make-container()`
-  width: 800px;
-}
-
-.example-row {
-  @include make-row();
-}
-
-.example-content-main {
-  @include make-col-ready();
-
-  @include media-breakpoint-up(sm) {
-    @include make-col(6);
-  }
-  @include media-breakpoint-up(lg) {
-    @include make-col(8);
-  }
-}
-
-.example-content-secondary {
-  @include make-col-ready();
-
-  @include media-breakpoint-up(sm) {
-    @include make-col(6);
-  }
-  @include media-breakpoint-up(lg) {
-    @include make-col(4);
-  }
-}
-```
-
-{{< example >}}
-<div class="example-container">
-  <div class="example-row">
-    <div class="example-content-main">Main content</div>
-    <div class="example-content-secondary">Secondary content</div>
-  </div>
-</div>
-{{< /example >}}
-
-## Customizing the grid
-
-Using our built-in grid Sass variables and maps, it's possible to completely customize the predefined grid classes. Change the number of tiers, the media query dimensions, and the container widths—then recompile.
-
-### Columns and gutters
-
-The number of grid columns can be modified via Sass variables. `$grid-columns` is used to generate the widths (in percent) of each individual column while `$grid-gutter-width` sets the width for the column gutters.
-
-```scss
-$grid-columns: 12 !default;
-$grid-gutter-width: 30px !default;
-```
-
-### Grid tiers
-
-Moving beyond the columns themselves, you may also customize the number of grid tiers. If you wanted just four grid tiers, you'd update the `$grid-breakpoints` and `$container-max-widths` to something like this:
-
-```scss
-$grid-breakpoints: (
-  xs: 0,
-  sm: 480px,
-  md: 768px,
-  lg: 1024px
-);
-
-$container-max-widths: (
-  sm: 420px,
-  md: 720px,
-  lg: 960px
-);
-```
-
-When making any changes to the Sass variables or maps, you'll need to save your changes and recompile. Doing so will output a brand new set of predefined grid classes for column widths, offsets, and ordering. Responsive visibility utilities will also be updated to use the custom breakpoints. Make sure to set grid values in `px` (not `rem`, `em`, or `%`).
diff --git a/vendor/twbs/bootstrap/site/content/docs/4.6/layout/overview.md b/vendor/twbs/bootstrap/site/content/docs/4.6/layout/overview.md
deleted file mode 100644
index 7430ba15f..000000000
--- a/vendor/twbs/bootstrap/site/content/docs/4.6/layout/overview.md
+++ /dev/null
@@ -1,277 +0,0 @@
----
-layout: docs
-title: Overview
-description: Components and options for laying out your Bootstrap project, including wrapping containers, a powerful grid system, a flexible media object, and responsive utility classes.
-group: layout
-aliases: "/docs/4.6/layout/"
-toc: true
----
-
-## Containers
-
-Containers are the most basic layout element in Bootstrap and are **required when using our default grid system**. Containers are used to contain, pad, and (sometimes) center the content within them. While containers *can* be nested, most layouts do not require a nested container.
-
-Bootstrap comes with three different containers:
-
-- `.container`, which sets a `max-width` at each responsive breakpoint
-- `.container-fluid`, which is `width: 100%` at all breakpoints
-- `.container-{breakpoint}`, which is `width: 100%` until the specified breakpoint
-
-The table below illustrates how each container's `max-width` compares to the original `.container` and `.container-fluid` across each breakpoint.
-
-See them in action and compare them in our [Grid example]({{< docsref "/examples/grid#containers" >}}).
-
-<table class="table">
-  <thead>
-    <tr>
-      <th></th>
-      <th>
-        Extra small<br>
-        <span class="font-weight-normal">&lt;576px</span>
-      </th>
-      <th>
-        Small<br>
-        <span class="font-weight-normal">&ge;576px</span>
-      </th>
-      <th>
-        Medium<br>
-        <span class="font-weight-normal">&ge;768px</span>
-      </th>
-      <th>
-        Large<br>
-        <span class="font-weight-normal">&ge;992px</span>
-      </th>
-      <th>
-        Extra large<br>
-        <span class="font-weight-normal">&ge;1200px</span>
-      </th>
-    </tr>
-  </thead>
-  <tbody>
-    <tr>
-      <td><code>.container</code></td>
-      <td class="text-muted">100%</td>
-      <td>540px</td>
-      <td>720px</td>
-      <td>960px</td>
-      <td>1140px</td>
-    </tr>
-    <tr>
-      <td><code>.container-sm</code></td>
-      <td class="text-muted">100%</td>
-      <td>540px</td>
-      <td>720px</td>
-      <td>960px</td>
-      <td>1140px</td>
-    </tr>
-    <tr>
-      <td><code>.container-md</code></td>
-      <td class="text-muted">100%</td>
-      <td class="text-muted">100%</td>
-      <td>720px</td>
-      <td>960px</td>
-      <td>1140px</td>
-    </tr>
-    <tr>
-      <td><code>.container-lg</code></td>
-      <td class="text-muted">100%</td>
-      <td class="text-muted">100%</td>
-      <td class="text-muted">100%</td>
-      <td>960px</td>
-      <td>1140px</td>
-    </tr>
-    <tr>
-      <td><code>.container-xl</code></td>
-      <td class="text-muted">100%</td>
-      <td class="text-muted">100%</td>
-      <td class="text-muted">100%</td>
-      <td class="text-muted">100%</td>
-      <td>1140px</td>
-    </tr>
-    <tr>
-      <td><code>.container-fluid</code></td>
-      <td class="text-muted">100%</td>
-      <td class="text-muted">100%</td>
-      <td class="text-muted">100%</td>
-      <td class="text-muted">100%</td>
-      <td class="text-muted">100%</td>
-    </tr>
-  </tbody>
-</table>
-
-### All-in-one
-
-Our default `.container` class is a responsive, fixed-width container, meaning its `max-width` changes at each breakpoint.
-
-```html
-<div class="container">
-  <!-- Content here -->
-</div>
-```
-
-### Fluid
-
-Use `.container-fluid` for a full width container, spanning the entire width of the viewport.
-
-```html
-<div class="container-fluid">
-  ...
-</div>
-```
-
-### Responsive
-
-Responsive containers are new in Bootstrap v4.4. They allow you to specify a class that is 100% wide until the specified breakpoint is reached, after which we apply `max-width`s for each of the higher breakpoints. For example, `.container-sm` is 100% wide to start until the `sm` breakpoint is reached, where it will scale up with `md`, `lg`, and `xl`.
-
-```html
-<div class="container-sm">100% wide until small breakpoint</div>
-<div class="container-md">100% wide until medium breakpoint</div>
-<div class="container-lg">100% wide until large breakpoint</div>
-<div class="container-xl">100% wide until extra large breakpoint</div>
-```
-
-## Responsive breakpoints
-
-Since Bootstrap is developed to be mobile first, we use a handful of [media queries](https://developer.mozilla.org/en-US/docs/Web/CSS/Media_Queries/Using_media_queries) to create sensible breakpoints for our layouts and interfaces. These breakpoints are mostly based on minimum viewport widths and allow us to scale up elements as the viewport changes.
-
-Bootstrap primarily uses the following media query ranges—or breakpoints—in our source Sass files for our layout, grid system, and components.
-
-```scss
-// Extra small devices (portrait phones, less than 576px)
-// No media query for `xs` since this is the default in Bootstrap
-
-// Small devices (landscape phones, 576px and up)
-@media (min-width: 576px) { ... }
-
-// Medium devices (tablets, 768px and up)
-@media (min-width: 768px) { ... }
-
-// Large devices (desktops, 992px and up)
-@media (min-width: 992px) { ... }
-
-// Extra large devices (large desktops, 1200px and up)
-@media (min-width: 1200px) { ... }
-```
-
-Since we write our source CSS in Sass, all our media queries are available via Sass mixins:
-
-```scss
-// No media query necessary for xs breakpoint as it's effectively `@media (min-width: 0) { ... }`
-@include media-breakpoint-up(sm) { ... }
-@include media-breakpoint-up(md) { ... }
-@include media-breakpoint-up(lg) { ... }
-@include media-breakpoint-up(xl) { ... }
-
-// Example: Hide starting at `min-width: 0`, and then show at the `sm` breakpoint
-.custom-class {
-  display: none;
-}
-@include media-breakpoint-up(sm) {
-  .custom-class {
-    display: block;
-  }
-}
-```
-
-We occasionally use media queries that go in the other direction (the given screen size *or smaller*):
-
-```scss
-// Extra small devices (portrait phones, less than 576px)
-@media (max-width: 575.98px) { ... }
-
-// Small devices (landscape phones, less than 768px)
-@media (max-width: 767.98px) { ... }
-
-// Medium devices (tablets, less than 992px)
-@media (max-width: 991.98px) { ... }
-
-// Large devices (desktops, less than 1200px)
-@media (max-width: 1199.98px) { ... }
-
-// Extra large devices (large desktops)
-// No media query since the extra-large breakpoint has no upper bound on its width
-```
-
-{{< callout info >}}
-{{< partial "callout-info-mediaqueries-breakpoints.md" >}}
-{{< /callout >}}
-
-Once again, these media queries are also available via Sass mixins:
-
-```scss
-@include media-breakpoint-down(xs) { ... }
-@include media-breakpoint-down(sm) { ... }
-@include media-breakpoint-down(md) { ... }
-@include media-breakpoint-down(lg) { ... }
-// No media query necessary for xl breakpoint as it has no upper bound on its width
-
-// Example: Style from medium breakpoint and down
-@include media-breakpoint-down(md) {
-  .custom-class {
-    display: block;
-  }
-}
-```
-
-There are also media queries and mixins for targeting a single segment of screen sizes using the minimum and maximum breakpoint widths.
-
-```scss
-// Extra small devices (portrait phones, less than 576px)
-@media (max-width: 575.98px) { ... }
-
-// Small devices (landscape phones, 576px and up)
-@media (min-width: 576px) and (max-width: 767.98px) { ... }
-
-// Medium devices (tablets, 768px and up)
-@media (min-width: 768px) and (max-width: 991.98px) { ... }
-
-// Large devices (desktops, 992px and up)
-@media (min-width: 992px) and (max-width: 1199.98px) { ... }
-
-// Extra large devices (large desktops, 1200px and up)
-@media (min-width: 1200px) { ... }
-```
-
-These media queries are also available via Sass mixins:
-
-```scss
-@include media-breakpoint-only(xs) { ... }
-@include media-breakpoint-only(sm) { ... }
-@include media-breakpoint-only(md) { ... }
-@include media-breakpoint-only(lg) { ... }
-@include media-breakpoint-only(xl) { ... }
-```
-
-Similarly, media queries may span multiple breakpoint widths:
-
-```scss
-// Example
-// Apply styles starting from medium devices and up to extra large devices
-@media (min-width: 768px) and (max-width: 1199.98px) { ... }
-```
-
-The Sass mixin for targeting the same screen size range would be:
-
-```scss
-@include media-breakpoint-between(md, xl) { ... }
-```
-
-## Z-index
-
-Several Bootstrap components utilize `z-index`, the CSS property that helps control layout by providing a third axis to arrange content. We utilize a default z-index scale in Bootstrap that's been designed to properly layer navigation, tooltips and popovers, modals, and more.
-
-These higher values start at an arbitrary number, high and specific enough to ideally avoid conflicts. We need a standard set of these across our layered components—tooltips, popovers, navbars, dropdowns, modals—so we can be reasonably consistent in the behaviors. There's no reason we couldn't have used `100`+ or `500`+.
-
-We don't encourage customization of these individual values; should you change one, you likely need to change them all.
-
-```scss
-$zindex-dropdown:          1000 !default;
-$zindex-sticky:            1020 !default;
-$zindex-fixed:             1030 !default;
-$zindex-modal-backdrop:    1040 !default;
-$zindex-modal:             1050 !default;
-$zindex-popover:           1060 !default;
-$zindex-tooltip:           1070 !default;
-```
-
-To handle overlapping borders within components (e.g., buttons and inputs in input groups), we use low single digit `z-index` values of `1`, `2`, and `3` for default, hover, and active states. On hover/focus/active, we bring a particular element to the forefront with a higher `z-index` value to show their border over the sibling elements.
diff --git a/vendor/twbs/bootstrap/site/content/docs/4.6/layout/utilities-for-layout.md b/vendor/twbs/bootstrap/site/content/docs/4.6/layout/utilities-for-layout.md
deleted file mode 100644
index 80c2d794a..000000000
--- a/vendor/twbs/bootstrap/site/content/docs/4.6/layout/utilities-for-layout.md
+++ /dev/null
@@ -1,25 +0,0 @@
----
-layout: docs
-title: Utilities for layout
-description: For faster mobile-friendly and responsive development, Bootstrap includes dozens of utility classes for showing, hiding, aligning, and spacing content.
-group: layout
-toc: true
----
-
-## Changing `display`
-
-Use our [display utilities]({{< docsref "/utilities/display" >}}) for responsively toggling common values of the `display` property. Mix it with our grid system, content, or components to show or hide them across specific viewports.
-
-## Flexbox options
-
-Bootstrap 4 is built with flexbox, but not every element's `display` has been changed to `display: flex` as this would add many unnecessary overrides and unexpectedly change key browser behaviors. Most of [our components]({{< docsref "/components/alerts" >}}) are built with flexbox enabled.
-
-Should you need to add `display: flex` to an element, do so with `.d-flex` or one of the responsive variants (e.g., `.d-sm-flex`). You'll need this class or `display` value to allow the use of our extra [flexbox utilities]({{< docsref "/utilities/flex" >}}) for sizing, alignment, spacing, and more.
-
-## Margin and padding
-
-Use the `margin` and `padding` [spacing utilities]({{< docsref "/utilities/spacing" >}}) to control how elements and components are spaced and sized. Bootstrap 4 includes a five-level scale for spacing utilities, based on a `1rem` value default `$spacer` variable. Choose values for all viewports (e.g., `.mr-3` for `margin-right: 1rem`), or pick responsive variants to target specific viewports (e.g., `.mr-md-3` for `margin-right: 1rem` starting at the `md` breakpoint).
-
-## Toggle `visibility`
-
-When toggling `display` isn't needed, you can toggle the `visibility` of an element with our [visibility utilities]({{< docsref "/utilities/visibility" >}}). Invisible elements will still affect the layout of the page, but are visually hidden from visitors.