Use border-radius CSS variables in more components (#38284)

* Update _variables.scss

missing global variable on nav-pills-border-radius

* Update _variables.scss

Author: jonnysp

scss/_variables.scss

@@ -840,9 +840,9 @@ $btn-link-hover-color:        var(--#{$prefix}link-hover-color) !default;
 $btn-link-disabled-color:     $gray-600 !default;
 
 // Allows for customizing button radius independently from global border radius
-$btn-border-radius:           $border-radius !default;
-$btn-border-radius-sm:        $border-radius-sm !default;
-$btn-border-radius-lg:        $border-radius-lg !default;
+$btn-border-radius:           var(--#{$prefix}border-radius) !default;
+$btn-border-radius-sm:        var(--#{$prefix}border-radius-sm) !default;
+$btn-border-radius-lg:        var(--#{$prefix}border-radius-lg) !default;
 
 $btn-transition:              color .15s ease-in-out, background-color .15s ease-in-out, border-color .15s ease-in-out, box-shadow .15s ease-in-out !default;
 
@@ -901,9 +901,9 @@ $input-border-color:                    var(--#{$prefix}border-color) !default;
 $input-border-width:                    $input-btn-border-width !default;
 $input-box-shadow:                      $box-shadow-inset !default;
 
-$input-border-radius:                   $border-radius !default;
-$input-border-radius-sm:                $border-radius-sm !default;
-$input-border-radius-lg:                $border-radius-lg !default;
+$input-border-radius:                   var(--#{$prefix}border-radius) !default;
+$input-border-radius-sm:                var(--#{$prefix}border-radius-sm) !default;
+$input-border-radius-lg:                var(--#{$prefix}border-radius-lg) !default;
 
 $input-focus-bg:                        $input-bg !default;
 $input-focus-border-color:              tint-color($component-active-bg, 50%) !default;
@@ -1168,7 +1168,7 @@ $nav-tabs-link-active-color:        var(--#{$prefix}emphasis-color) !default;
 $nav-tabs-link-active-bg:           var(--#{$prefix}body-bg) !default;
 $nav-tabs-link-active-border-color: var(--#{$prefix}border-color) var(--#{$prefix}border-color) $nav-tabs-link-active-bg !default;
 
-$nav-pills-border-radius:           $border-radius !default;
+$nav-pills-border-radius:           var(--#{$prefix}border-radius) !default;
 $nav-pills-link-active-color:       $component-active-color !default;
 $nav-pills-link-active-bg:          $component-active-bg !default;
 
@@ -1236,7 +1236,7 @@ $dropdown-font-size:                $font-size-base !default;
 $dropdown-color:                    var(--#{$prefix}body-color) !default;
 $dropdown-bg:                       var(--#{$prefix}body-bg) !default;
 $dropdown-border-color:             var(--#{$prefix}border-color-translucent) !default;
-$dropdown-border-radius:            $border-radius !default;
+$dropdown-border-radius:            var(--#{$prefix}border-radius) !default;
 $dropdown-border-width:             var(--#{$prefix}border-width) !default;
 $dropdown-inner-border-radius:      calc($dropdown-border-radius - $dropdown-border-width) !default; // stylelint-disable-line function-disallowed-list
 $dropdown-divider-bg:               $dropdown-border-color !default;
@@ -1317,8 +1317,8 @@ $pagination-disabled-border-color:  var(--#{$prefix}border-color) !default;
 
 $pagination-transition:              color .15s ease-in-out, background-color .15s ease-in-out, border-color .15s ease-in-out, box-shadow .15s ease-in-out !default;
 
-$pagination-border-radius-sm:       $border-radius-sm !default;
-$pagination-border-radius-lg:       $border-radius-lg !default;
+$pagination-border-radius-sm:       var(--#{$prefix}border-radius-sm) !default;
+$pagination-border-radius-lg:       var(--#{$prefix}border-radius-lg) !default;
 // scss-docs-end pagination-variables
 
 
@@ -1482,7 +1482,7 @@ $badge-font-weight:                 $font-weight-bold !default;
 $badge-color:                       $white !default;
 $badge-padding-y:                   .35em !default;
 $badge-padding-x:                   .65em !default;
-$badge-border-radius:               $border-radius !default;
+$badge-border-radius:               var(--#{$prefix}border-radius) !default;
 // scss-docs-end badge-variables
 
 
@@ -1540,7 +1540,7 @@ $modal-scale-transform:             scale(1.02) !default;
 $alert-padding-y:               $spacer !default;
 $alert-padding-x:               $spacer !default;
 $alert-margin-bottom:           1rem !default;
-$alert-border-radius:           $border-radius !default;
+$alert-border-radius:           var(--#{$prefix}border-radius) !default;
 $alert-link-font-weight:        $font-weight-bold !default;
 $alert-border-width:            var(--#{$prefix}border-width) !default;
 $alert-bg-scale:                -80% !default;