Update bootstrap 4.6.1

WebCms/Content/bootstrap/_card.scss

@@ -19,16 +19,26 @@
     margin-left: 0;
   }
 
-  > .list-group:first-child {
-    .list-group-item:first-child {
-      @include border-top-radius($card-border-radius);
+  > .list-group {
+    border-top: inherit;
+    border-bottom: inherit;
+
+    &:first-child {
+      border-top-width: 0;
+      @include border-top-radius($card-inner-border-radius);
+    }
+
+    &:last-child  {
+      border-bottom-width: 0;
+      @include border-bottom-radius($card-inner-border-radius);
     }
   }
 
-  > .list-group:last-child {
-    .list-group-item:last-child {
-      @include border-bottom-radius($card-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;
   }
 }
 
@@ -48,7 +58,7 @@
 }
 
 .card-subtitle {
-  margin-top: -$card-spacer-y / 2;
+  margin-top: -$card-spacer-y * .5;
   margin-bottom: 0;
 }
 
@@ -80,16 +90,11 @@
   &: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 {
   padding: $card-spacer-y $card-spacer-x;
+  color: $card-cap-color;
   background-color: $card-cap-bg;
   border-top: $card-border-width solid $card-border-color;
 
@@ -104,15 +109,15 @@
 //
 
 .card-header-tabs {
-  margin-right: -$card-spacer-x / 2;
+  margin-right: -$card-spacer-x * .5;
   margin-bottom: -$card-spacer-y;
-  margin-left: -$card-spacer-x / 2;
+  margin-left: -$card-spacer-x * .5;
   border-bottom: 0;
 }
 
 .card-header-pills {
-  margin-right: -$card-spacer-x / 2;
-  margin-left: -$card-spacer-x / 2;
+  margin-right: -$card-spacer-x * .5;
+  margin-left: -$card-spacer-x * .5;
 }
 
 // Card image
@@ -123,6 +128,7 @@
   bottom: 0;
   left: 0;
   padding: $card-img-overlay-padding;
+  @include border-radius($card-inner-border-radius);
 }
 
 .card-img,
@@ -200,12 +206,12 @@
 
           .card-img-top,
           .card-header {
-            // stylelint-disable-next-line property-blacklist
+            // stylelint-disable-next-line property-disallowed-list
             border-top-right-radius: 0;
           }
           .card-img-bottom,
           .card-footer {
-            // stylelint-disable-next-line property-blacklist
+            // stylelint-disable-next-line property-disallowed-list
             border-bottom-right-radius: 0;
           }
         }
@@ -215,12 +221,12 @@
 
           .card-img-top,
           .card-header {
-            // stylelint-disable-next-line property-blacklist
+            // stylelint-disable-next-line property-disallowed-list
             border-top-left-radius: 0;
           }
           .card-img-bottom,
           .card-footer {
-            // stylelint-disable-next-line property-blacklist
+            // stylelint-disable-next-line property-disallowed-list
             border-bottom-left-radius: 0;
           }
         }
@@ -258,6 +264,8 @@
 //
 
 .accordion {
+  overflow-anchor: none;
+
   > .card {
     overflow: hidden;