[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/icon-button/icon-button.component.ts

@@ -16,6 +16,7 @@ import { AriaDisableDirective } from "../a11y";
 import { setA11yTitleAndAriaLabel } from "../a11y/set-a11y-title-and-aria-label";
 import { ButtonLikeAbstraction } from "../shared/button-like.abstraction";
 import { FocusableElement } from "../shared/focusable-element";
+import { SpinnerComponent } from "../spinner";
 import { ariaDisableElement } from "../utils";
 
 export type IconButtonType = "primary" | "danger" | "contrast" | "main" | "muted" | "nav-contrast";
@@ -87,7 +88,7 @@ const sizes: Record<IconButtonSize, string[]> = {
     { provide: ButtonLikeAbstraction, useExisting: BitIconButtonComponent },
     { provide: FocusableElement, useExisting: BitIconButtonComponent },
   ],
-  imports: [NgClass],
+  imports: [NgClass, SpinnerComponent],
   host: {
     /**
      * When the `bitIconButton` input is dynamic from a consumer, Angular doesn't put the