feat(useragent): added connection info setup screen

useragent/lib/main.dart

@@ -1,14 +1,35 @@
 import 'package:arbiter/router.dart';
 import 'package:flutter/material.dart' hide Router;
 import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:sizer/sizer.dart';
 
 void main() {
   WidgetsFlutterBinding.ensureInitialized();
-  runApp(
-    ProviderScope(
-      child: MaterialApp.router(
-        routerConfig: Router().config(),
-      ),
-    ),
-  );
+  runApp(const ProviderScope(child: App()));
+}
+
+class App extends StatefulWidget {
+  const App({super.key});
+
+  @override
+  State<App> createState() => _AppState();
+}
+
+class _AppState extends State<App> {
+  late final Router _router;
+
+  @override
+  void initState() {
+    super.initState();
+    _router = Router();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Sizer(
+      builder: (context, orientation, deviceType) {
+        return MaterialApp.router(routerConfig: _router.config());
+      },
+    );
+  }
 }