refactor: migrate to angular esbuild

refactor: migrate to ionic standalone components
refactor: migrate ion icons to a custom element

frontend/app/capacitor.config.ts

@@ -3,7 +3,7 @@ import {CapacitorConfig} from '@capacitor/cli';
 const config: CapacitorConfig = {
   appId: 'de.anyschool.app',
   appName: 'StApps',
-  webDir: 'www',
+  webDir: 'www/browser',
   cordova: {
     preferences: {
       'AndroidXEnabled': 'true',