refactor: use the latest web component polyfills

Author: vladitasev

packages/base/src/sap/ui/webcomponents/base/browsersupport/Edge.js

@@ -1,6 +1,9 @@
 // URLSearchParams
 import "url-search-params-polyfill";
 
-// Edge only needs the Web Components polyfill and the pseudo mutation observer fix
-import "../thirdparty/webcomponents-polyfill";
+// Web Components polyfills
+import "../thirdparty/shadydom.min";
+import "../thirdparty/custom-elements.min";
+
+// "pseudo mutation observer" fix for nodeValue
 import "../compatibility/patchNodeValue";