feat: Refactor code structure and optimize performance across multiple modules

mobile-apps/staff-app/lib/app.dart

@@ -0,0 +1,37 @@
+import 'package:easy_localization/easy_localization.dart';
+import 'package:flutter/material.dart';
+import 'package:krow/core/application/routing/routes.dart';
+import 'package:krow/core/presentation/styles/theme.dart';
+
+import 'core/presentation/widgets/restart_widget.dart';
+BuildContext? appContext;
+class KrowApp extends StatefulWidget {
+  const KrowApp({super.key});
+
+  @override
+  State<KrowApp> createState() => _KrowAppState();
+}
+
+class _KrowAppState extends State<KrowApp> {
+  @override
+  void initState() {
+    super.initState();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp.router(
+      localizationsDelegates: context.localizationDelegates,
+      supportedLocales: context.supportedLocales,
+      locale: context.locale,
+      routerConfig: appRouter.config(),
+      theme: KWTheme.lightTheme,
+      builder: (context, child) {
+        appContext = context;
+        return RestartWidget(child: child!);
+      },
+    );
+  }
+}
+
+final appRouter = AppRouter();