[CL-95] loading spinner (#16363)

* add spiner from previous branch

* add loading spinner to button

* Add spinner to dialog

* Add spinner to icon button

* add spinner to multi select component

* fix spinner positioning

* Add mock i18n in stories where needed

* round stroke caps. Update classes

* fix ts error

* fix broken tests

* add missing translation keys to stories

* Add mising key for layout

* Add mising key for nav group

* Add mising key for spotlight

* Add mising key for product switcher

* Add mising key for dialog service

* add translation to copy click story

libs/components/src/button/button.component.html

@@ -2,10 +2,9 @@
   <span [ngClass]="{ 'tw-invisible': showLoadingStyle() }">
     <ng-content></ng-content>
   </span>
-  <span
-    class="tw-absolute tw-inset-0 tw-flex tw-items-center tw-justify-center"
-    [ngClass]="{ 'tw-invisible': !showLoadingStyle() }"
-  >
-    <i class="bwi bwi-spinner bwi-lg bwi-spin" aria-hidden="true"></i>
-  </span>
+  @if (showLoadingStyle()) {
+    <span class="tw-absolute tw-inset-0 tw-flex tw-items-center tw-justify-center">
+      <bit-spinner size="fill" noColor></bit-spinner>
+    </span>
+  }
 </span>