archive UMD Bundles app (#4227)

examples-standalone/umd-bundles/README.md

@@ -1,3 +1,6 @@
+> [!IMPORTANT]  
+> The UMD Bundles application has been archived. Check the [supported versions of Angular](https://www.telerik.com/kendo-angular-ui-develop/components/installation/requirements/#toc-angular).
+
 # Kendo UI for Angular - UMD Bundles
 Sample application for loading [Kendo UI for Angular](https://github.com/telerik/kendo-angular) as external scripts via Webpack.
 
@@ -12,3 +15,4 @@ See [Microfrontend with Angular and Webpack Module Federation](https://www.steff
 1. Run `npm ci` to fetch all dependencies
 1. Run `npm start` to build and run the application
 1. Navigate to http://localhost:8080/dist/
+