feat: add mobile device detection and update session state management

lib/main.dart

@@ -1,3 +1,6 @@
+import 'dart:io';
+
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:flutter_dotenv/flutter_dotenv.dart';
@@ -109,6 +112,14 @@ class _FluxAppState extends State<FluxApp> {
     super.initState();
     // Creiamo il router passandogli il Cubit per i redirect
     _router = AppRouter.createRouter(context.read<SessionCubit>());
+    GetIt.I.get<SessionCubit>().setIsMobileDevice(isMobileDevice(context));
+  }
+
+  bool isMobileDevice(BuildContext context) {
+    if (kIsWeb) {
+      return false; // Il web non lo consideriamo "mobile nativo" per i deep link
+    }
+    return Platform.isAndroid || Platform.isIOS;
   }
 
   @override