feat: enhance application structure and improve accessibility

- Refactor various components for better readability and maintainability.
- Update HTML templates to include `alt` attributes for images and `for` attributes for labels.
- Implement reactive forms in OTP component and improve token management in AuthService.
- Adjust routing to redirect to 'admin/about' by default.
- Remove deprecated interceptor implementation and streamline authentication logic.
- Add console logs for better debugging during initialization.

src/main.ts

@@ -2,5 +2,7 @@ import { bootstrapApplication } from '@angular/platform-browser';
 import { appConfig } from './app/app.config';
 import { App } from './app/app';
 
+console.log('🌍 bootstrapApplication called', { time: Date.now() });
+
 bootstrapApplication(App, appConfig)
   .catch((err) => console.error(err));