15 files changed, 47 insertions, 49 deletions
diff --git a/vendor/twbs/bootstrap/scss/_card.scss b/vendor/twbs/bootstrap/scss/_card.scss
index fabe9f367..7c35f7ed8 100644
--- a/vendor/twbs/bootstrap/scss/_card.scss
+++ b/vendor/twbs/bootstrap/scss/_card.scss
@@ -33,6 +33,13 @@
       @include border-bottom-radius($card-inner-border-radius);
     }
   }
+
+  // Due to specificity of the above selector (`.card > .list-group`), we must
+  // use a child selector here to prevent double borders.
+  > .card-header + .list-group,
+  > .list-group + .card-footer {
+    border-top: 0;
+  }
 }
 
 .card-body {
@@ -83,12 +90,6 @@
   &:first-child {
     @include border-radius($card-inner-border-radius $card-inner-border-radius 0 0);
   }
-
-  + .list-group {
-    .list-group-item:first-child {
-      border-top: 0;
-    }
-  }
 }
 
 .card-footer {
@@ -127,6 +128,7 @@
   bottom: 0;
   left: 0;
   padding: $card-img-overlay-padding;
+  @include border-radius($card-inner-border-radius);
 }
 
 .card-img,
@@ -262,6 +264,8 @@
 //
 
 .accordion {
+  overflow-anchor: none;
+
   > .card {
     overflow: hidden;
 
diff --git a/vendor/twbs/bootstrap/scss/_custom-forms.scss b/vendor/twbs/bootstrap/scss/_custom-forms.scss
index 0804c63cf..9aeeeda7f 100644
--- a/vendor/twbs/bootstrap/scss/_custom-forms.scss
+++ b/vendor/twbs/bootstrap/scss/_custom-forms.scss
@@ -9,6 +9,7 @@
 
 .custom-control {
   position: relative;
+  z-index: 1;
   display: block;
   min-height: $font-size-base * $line-height-base;
   padding-left: $custom-control-gutter + $custom-control-indicator-size;
@@ -135,10 +136,10 @@
 
   .custom-control-input:disabled {
     &:checked ~ .custom-control-label::before {
-      background-color: $custom-control-indicator-checked-disabled-bg;
+      @include gradient-bg($custom-control-indicator-checked-disabled-bg);
     }
     &:indeterminate ~ .custom-control-label::before {
-      background-color: $custom-control-indicator-checked-disabled-bg;
+      @include gradient-bg($custom-control-indicator-checked-disabled-bg);
     }
   }
 }
@@ -161,7 +162,7 @@
 
   .custom-control-input:disabled {
     &:checked ~ .custom-control-label::before {
-      background-color: $custom-control-indicator-checked-disabled-bg;
+      @include gradient-bg($custom-control-indicator-checked-disabled-bg);
     }
   }
 }
@@ -204,7 +205,7 @@
 
   .custom-control-input:disabled {
     &:checked ~ .custom-control-label::before {
-      background-color: $custom-control-indicator-checked-disabled-bg;
+      @include gradient-bg($custom-control-indicator-checked-disabled-bg);
     }
   }
 }
diff --git a/vendor/twbs/bootstrap/scss/_grid.scss b/vendor/twbs/bootstrap/scss/_grid.scss
index 57ec5a9d0..0bfe5303b 100644
--- a/vendor/twbs/bootstrap/scss/_grid.scss
+++ b/vendor/twbs/bootstrap/scss/_grid.scss
@@ -4,11 +4,7 @@
 
 @if $enable-grid-classes {
   // Single container class with breakpoint max-widths
-  .container {
-    @include make-container();
-    @include make-container-max-widths();
-  }
-
+  .container,
   // 100% wide container at all breakpoints
   .container-fluid {
     @include make-container();
diff --git a/vendor/twbs/bootstrap/scss/_modal.scss b/vendor/twbs/bootstrap/scss/_modal.scss
index a6d0f0651..e43c70fbb 100644
--- a/vendor/twbs/bootstrap/scss/_modal.scss
+++ b/vendor/twbs/bootstrap/scss/_modal.scss
@@ -182,7 +182,6 @@
   // Place margin between footer elements
   // This solution is far from ideal because of the universal selector usage,
   // but is needed to fix https://github.com/twbs/bootstrap/issues/24800
-  // stylelint-disable-next-line selector-max-universal
   > * {
     margin: $modal-footer-margin-between / 2;
   }
diff --git a/vendor/twbs/bootstrap/scss/_nav.scss b/vendor/twbs/bootstrap/scss/_nav.scss
index b8b73bb7a..d866c9841 100644
--- a/vendor/twbs/bootstrap/scss/_nav.scss
+++ b/vendor/twbs/bootstrap/scss/_nav.scss
@@ -92,6 +92,7 @@
 //
 
 .nav-fill {
+  > .nav-link,
   .nav-item {
     flex: 1 1 auto;
     text-align: center;
@@ -99,6 +100,7 @@
 }
 
 .nav-justified {
+  > .nav-link,
   .nav-item {
     flex-basis: 0;
     flex-grow: 1;
diff --git a/vendor/twbs/bootstrap/scss/_reboot.scss b/vendor/twbs/bootstrap/scss/_reboot.scss
index 5a52b58fc..4444ff0f0 100644
--- a/vendor/twbs/bootstrap/scss/_reboot.scss
+++ b/vendor/twbs/bootstrap/scss/_reboot.scss
@@ -199,7 +199,7 @@ a {
 // causes specificity issues in many other styles that are too complex to fix.
 // See https://github.com/twbs/bootstrap/issues/19402
 
-a:not([href]) {
+a:not([href]):not([class]) {
   color: inherit;
   text-decoration: none;
 
diff --git a/vendor/twbs/bootstrap/scss/_toasts.scss b/vendor/twbs/bootstrap/scss/_toasts.scss
index 6aa5352a3..f9ca8d91c 100644
--- a/vendor/twbs/bootstrap/scss/_toasts.scss
+++ b/vendor/twbs/bootstrap/scss/_toasts.scss
@@ -1,13 +1,14 @@
 .toast {
+  // Prevents from shrinking in IE11, when in a flex container
+  // See https://github.com/twbs/bootstrap/issues/28341
+  flex-basis: $toast-max-width;
   max-width: $toast-max-width;
-  overflow: hidden; // cheap rounded corners on nested items
   @include font-size($toast-font-size);
   color: $toast-color;
   background-color: $toast-background-color;
   background-clip: padding-box;
   border: $toast-border-width solid $toast-border-color;
   box-shadow: $toast-box-shadow;
-  backdrop-filter: blur(10px);
   opacity: 0;
   @include border-radius($toast-border-radius);
 
@@ -37,6 +38,7 @@
   background-color: $toast-header-background-color;
   background-clip: padding-box;
   border-bottom: $toast-border-width solid $toast-header-border-color;
+  @include border-top-radius(subtract($toast-border-radius, $toast-border-width));
 }
 
 .toast-body {
diff --git a/vendor/twbs/bootstrap/scss/_variables.scss b/vendor/twbs/bootstrap/scss/_variables.scss
index 22fafe10c..3ff0c65b3 100644
--- a/vendor/twbs/bootstrap/scss/_variables.scss
+++ b/vendor/twbs/bootstrap/scss/_variables.scss
@@ -18,7 +18,6 @@ $gray-900: #212529 !default;
 $black:    #000 !default;
 
 $grays: () !default;
-// stylelint-disable-next-line scss/dollar-variable-default
 $grays: map-merge(
   (
     "100": $gray-100,
@@ -46,7 +45,6 @@ $teal:    #20c997 !default;
 $cyan:    #17a2b8 !default;
 
 $colors: () !default;
-// stylelint-disable-next-line scss/dollar-variable-default
 $colors: map-merge(
   (
     "blue":       $blue,
@@ -76,7 +74,6 @@ $light:         $gray-100 !default;
 $dark:          $gray-800 !default;
 
 $theme-colors: () !default;
-// stylelint-disable-next-line scss/dollar-variable-default
 $theme-colors: map-merge(
   (
     "primary":    $primary,
@@ -103,11 +100,11 @@ $yiq-text-light:            $white !default;
 
 // Characters which are escaped by the escape-svg function
 $escaped-characters: (
-  ("<","%3c"),
-  (">","%3e"),
-  ("#","%23"),
-  ("(","%28"),
-  (")","%29"),
+  ("<", "%3c"),
+  (">", "%3e"),
+  ("#", "%23"),
+  ("(", "%28"),
+  (")", "%29"),
 ) !default;
 
 
@@ -138,7 +135,6 @@ $enable-deprecation-messages:                 true !default;
 
 $spacer: 1rem !default;
 $spacers: () !default;
-// stylelint-disable-next-line scss/dollar-variable-default
 $spacers: map-merge(
   (
     0: 0,
@@ -153,7 +149,6 @@ $spacers: map-merge(
 
 // This variable affects the `.h-*` and `.w-*` classes.
 $sizes: () !default;
-// stylelint-disable-next-line scss/dollar-variable-default
 $sizes: map-merge(
   (
     25: 25%,
@@ -264,7 +259,6 @@ $transition-fade:             opacity .15s linear !default;
 $transition-collapse:         height .35s ease !default;
 
 $embed-responsive-aspect-ratios: () !default;
-// stylelint-disable-next-line scss/dollar-variable-default
 $embed-responsive-aspect-ratios: join(
   (
     (21 9),
@@ -546,7 +540,7 @@ $custom-control-label-disabled-color:           $gray-600 !default;
 $custom-control-indicator-checked-color:        $component-active-color !default;
 $custom-control-indicator-checked-bg:           $component-active-bg !default;
 $custom-control-indicator-checked-disabled-bg:  rgba(theme-color("primary"), .5) !default;
-$custom-control-indicator-checked-box-shadow:   none !default;
+$custom-control-indicator-checked-box-shadow:   null !default;
 $custom-control-indicator-checked-border-color: $custom-control-indicator-checked-bg !default;
 
 $custom-control-indicator-focus-box-shadow:     $input-focus-box-shadow !default;
@@ -554,7 +548,7 @@ $custom-control-indicator-focus-border-color:   $input-focus-border-color !defau
 
 $custom-control-indicator-active-color:         $component-active-color !default;
 $custom-control-indicator-active-bg:            lighten($component-active-bg, 35%) !default;
-$custom-control-indicator-active-box-shadow:    none !default;
+$custom-control-indicator-active-box-shadow:    null !default;
 $custom-control-indicator-active-border-color:  $custom-control-indicator-active-bg !default;
 
 $custom-checkbox-indicator-border-radius:       $border-radius !default;
@@ -563,7 +557,7 @@ $custom-checkbox-indicator-icon-checked:        url("data:image/svg+xml,<svg xml
 $custom-checkbox-indicator-indeterminate-bg:           $component-active-bg !default;
 $custom-checkbox-indicator-indeterminate-color:        $custom-control-indicator-checked-color !default;
 $custom-checkbox-indicator-icon-indeterminate:         url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='4' height='4' viewBox='0 0 4 4'><path stroke='#{$custom-checkbox-indicator-indeterminate-color}' d='M0 2h4'/></svg>") !default;
-$custom-checkbox-indicator-indeterminate-box-shadow:   none !default;
+$custom-checkbox-indicator-indeterminate-box-shadow:   null !default;
 $custom-checkbox-indicator-indeterminate-border-color: $custom-checkbox-indicator-indeterminate-bg !default;
 
 $custom-radio-indicator-border-radius:          50% !default;
@@ -668,7 +662,6 @@ $form-feedback-icon-invalid-color:  $form-feedback-invalid-color !default;
 $form-feedback-icon-invalid:        url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='#{$form-feedback-icon-invalid-color}' viewBox='0 0 12 12'><circle cx='6' cy='6' r='4.5'/><path stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/><circle cx='6' cy='8.2' r='.6' fill='#{$form-feedback-icon-invalid-color}' stroke='none'/></svg>") !default;
 
 $form-validation-states: () !default;
-// stylelint-disable-next-line scss/dollar-variable-default
 $form-validation-states: map-merge(
   (
     "valid": (
diff --git a/vendor/twbs/bootstrap/scss/bootstrap-grid.scss b/vendor/twbs/bootstrap/scss/bootstrap-grid.scss
index 4109e4fbd..06c9e2c4b 100644
--- a/vendor/twbs/bootstrap/scss/bootstrap-grid.scss
+++ b/vendor/twbs/bootstrap/scss/bootstrap-grid.scss
@@ -1,8 +1,8 @@
 /*!
- * Bootstrap Grid v4.5.0 (https://getbootstrap.com/)
+ * Bootstrap Grid v4.5.2 (https://getbootstrap.com/)
  * Copyright 2011-2020 The Bootstrap Authors
  * Copyright 2011-2020 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
  */
 
 html {
diff --git a/vendor/twbs/bootstrap/scss/bootstrap-reboot.scss b/vendor/twbs/bootstrap/scss/bootstrap-reboot.scss
index e61235ac6..d922d75fb 100644
--- a/vendor/twbs/bootstrap/scss/bootstrap-reboot.scss
+++ b/vendor/twbs/bootstrap/scss/bootstrap-reboot.scss
@@ -1,8 +1,8 @@
 /*!
- * Bootstrap Reboot v4.5.0 (https://getbootstrap.com/)
+ * Bootstrap Reboot v4.5.2 (https://getbootstrap.com/)
  * Copyright 2011-2020 The Bootstrap Authors
  * Copyright 2011-2020 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
  * Forked from Normalize.css, licensed MIT (https://github.com/necolas/normalize.css/blob/master/LICENSE.md)
  */
 
diff --git a/vendor/twbs/bootstrap/scss/bootstrap.scss b/vendor/twbs/bootstrap/scss/bootstrap.scss
index 8ae96deb9..4d6521c0b 100644
--- a/vendor/twbs/bootstrap/scss/bootstrap.scss
+++ b/vendor/twbs/bootstrap/scss/bootstrap.scss
@@ -1,8 +1,8 @@
 /*!
- * Bootstrap v4.5.0 (https://getbootstrap.com/)
+ * Bootstrap v4.5.2 (https://getbootstrap.com/)
  * Copyright 2011-2020 The Bootstrap Authors
  * Copyright 2011-2020 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
  */
 
 @import "functions";
diff --git a/vendor/twbs/bootstrap/scss/mixins/_forms.scss b/vendor/twbs/bootstrap/scss/mixins/_forms.scss
index 57c2d79f2..39b52f3ca 100644
--- a/vendor/twbs/bootstrap/scss/mixins/_forms.scss
+++ b/vendor/twbs/bootstrap/scss/mixins/_forms.scss
@@ -53,6 +53,7 @@
   .#{$state}-tooltip {
     position: absolute;
     top: 100%;
+    left: 0;
     z-index: 5;
     display: none;
     max-width: 100%; // Contain to parent when possible
diff --git a/vendor/twbs/bootstrap/scss/mixins/_grid-framework.scss b/vendor/twbs/bootstrap/scss/mixins/_grid-framework.scss
index 191fb5650..6fc8e8561 100644
--- a/vendor/twbs/bootstrap/scss/mixins/_grid-framework.scss
+++ b/vendor/twbs/bootstrap/scss/mixins/_grid-framework.scss
@@ -34,7 +34,6 @@
       .col#{$infix} {
         flex-basis: 0;
         flex-grow: 1;
-        min-width: 0; // See https://github.com/twbs/bootstrap/issues/25410
         max-width: 100%;
       }
 
diff --git a/vendor/twbs/bootstrap/scss/mixins/_grid.scss b/vendor/twbs/bootstrap/scss/mixins/_grid.scss
index b1240b01f..b72d150e4 100644
--- a/vendor/twbs/bootstrap/scss/mixins/_grid.scss
+++ b/vendor/twbs/bootstrap/scss/mixins/_grid.scss
@@ -10,6 +10,12 @@
   margin-left: auto;
 }
 
+@mixin make-row($gutter: $grid-gutter-width) {
+  display: flex;
+  flex-wrap: wrap;
+  margin-right: -$gutter / 2;
+  margin-left: -$gutter / 2;
+}
 
 // For each breakpoint, define the maximum width of the container in a media query
 @mixin make-container-max-widths($max-widths: $container-max-widths, $breakpoints: $grid-breakpoints) {
@@ -18,13 +24,7 @@
       max-width: $container-max-width;
     }
   }
-}
-
-@mixin make-row($gutter: $grid-gutter-width) {
-  display: flex;
-  flex-wrap: wrap;
-  margin-right: -$gutter / 2;
-  margin-left: -$gutter / 2;
+  @include deprecate("The `make-container-max-widths` mixin", "v4.5.2", "v5");
 }
 
 @mixin make-col-ready($gutter: $grid-gutter-width) {
diff --git a/vendor/twbs/bootstrap/scss/utilities/_text.scss b/vendor/twbs/bootstrap/scss/utilities/_text.scss
index d2b2a22ed..5d0f1c845 100644
--- a/vendor/twbs/bootstrap/scss/utilities/_text.scss
+++ b/vendor/twbs/bootstrap/scss/utilities/_text.scss
@@ -63,7 +63,8 @@
 .text-decoration-none { text-decoration: none !important; }
 
 .text-break {
-  word-wrap: break-word !important;
+  word-break: break-word !important; // IE & < Edge 18
+  overflow-wrap: break-word !important;
 }
 
 // Reset