added device setup flow, qr reader, createChildProfile models and cookies packages

apps/mobile_app/lib/main.dart

@@ -7,6 +7,8 @@ import 'package:design_system/design_system.dart';
 import 'package:sf_app_platform/config/env/questia_env_config.dart';
 import 'package:sf_app_platform/navigation/app_router.dart';
 import 'package:navigation/navigation_module.dart';
+import 'package:sf_app_platform/providers/app_state_provider.dart';
+import 'package:sf_app_platform/providers/permissions/permissions_provider.dart';
 import 'package:sf_infrastructure/sf_infrastructure.dart';
 import 'package:sf_localizations/sf_localizations.dart';
 import 'package:utils/utils.dart';
@@ -23,11 +25,39 @@ Future<void> main() async {
   runApp(const ProviderScope(child: PlatformApp()));
 }
 
-class PlatformApp extends ConsumerWidget {
+class PlatformApp extends ConsumerStatefulWidget {
   const PlatformApp({super.key});
 
   @override
-  Widget build(BuildContext context, WidgetRef ref) {
+  PlatformAppState createState() => PlatformAppState();
+}
+
+class PlatformAppState extends ConsumerState<PlatformApp>
+    with WidgetsBindingObserver {
+  @override
+  void initState() {
+    super.initState();
+    WidgetsBinding.instance.addObserver(this);
+  }
+
+  @override
+  void dispose() {
+    WidgetsBinding.instance.removeObserver(this);
+    super.dispose();
+  }
+
+  @override
+  void didChangeAppLifecycleState(AppLifecycleState state) {
+    debugPrint('State: $state');
+    ref.read(appLifecycleStateProvider.notifier).setState(state);
+    if (state == AppLifecycleState.resumed) {
+      ref.read(permissionsProvider.notifier).checkPermissions();
+    }
+    super.didChangeAppLifecycleState(state);
+  }
+
+  @override
+  Widget build(BuildContext context) {
     SizeUtils.init(context: context);
 
     return MaterialApp.router(