v2: TV optimized UI, country filter fix, landscape mode

lib/main.dart

@@ -1,10 +1,17 @@
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:provider/provider.dart';
 import 'services/iptv_provider.dart';
 import 'screens/login_screen.dart';
 import 'screens/home_screen.dart';
 
 void main() {
+  WidgetsFlutterBinding.ensureInitialized();
+  SystemChrome.setPreferredOrientations([
+    DeviceOrientation.landscapeLeft,
+    DeviceOrientation.landscapeRight,
+  ]);
+  SystemChrome.setEnabledSystemUIMode(SystemUiMode.immersiveSticky);
   runApp(const XStreamTVApp());
 }