feat: Implement Xtream IPTV API service, including data fetching, caching, and proxy integration.

lib/features/iptv/services/xtream_service.dart

@@ -18,9 +18,9 @@ class XtreamService {
   XtreamService() {
     _dio = Dio(
       BaseOptions(
-        connectTimeout: const Duration(seconds: 60),
-        receiveTimeout: const Duration(seconds: 60),
-        sendTimeout: const Duration(seconds: 60),
+        connectTimeout: const Duration(seconds: 300),
+        receiveTimeout: const Duration(seconds: 300),
+        sendTimeout: const Duration(seconds: 300),
       ),
     );