Refactor components to use a utility function to define jQuery plugins (#32285)

* refactor: use an utility function to define jQuery plugins

* test: add spec for defineJQueryPlugin utility function

* Update .bundlewatch.config.json

Co-authored-by: XhmikosR <xhmikosr@gmail.com>

js/src/scrollspy.js

@@ -6,8 +6,7 @@
  */
 
 import {
-  getjQuery,
-  onDOMContentLoaded,
+  defineJQueryPlugin,
   getSelectorFromElement,
   getUID,
   isElement,
@@ -315,18 +314,6 @@ EventHandler.on(window, EVENT_LOAD_DATA_API, () => {
  * add .ScrollSpy to jQuery only if jQuery is present
  */
 
-onDOMContentLoaded(() => {
-  const $ = getjQuery()
-  /* istanbul ignore if */
-  if ($) {
-    const JQUERY_NO_CONFLICT = $.fn[NAME]
-    $.fn[NAME] = ScrollSpy.jQueryInterface
-    $.fn[NAME].Constructor = ScrollSpy
-    $.fn[NAME].noConflict = () => {
-      $.fn[NAME] = JQUERY_NO_CONFLICT
-      return ScrollSpy.jQueryInterface
-    }
-  }
-})
+defineJQueryPlugin(NAME, ScrollSpy)
 
 export default ScrollSpy