fix(network): increase connection/receive timeout to 60s

lib/features/iptv/services/xtream_service.dart

@@ -17,8 +17,8 @@ class XtreamService {
 
   XtreamService() {
     _dio = Dio(BaseOptions(
-      connectTimeout: const Duration(seconds: 15),
-      receiveTimeout: const Duration(seconds: 15),
+      connectTimeout: const Duration(seconds: 60),
+      receiveTimeout: const Duration(seconds: 60),
     ),);
 
     // Setup caching for API responses