fix: remove duplicate style.height assignment in player_screen.dart

Remove duplicate ..style.height = '100%' line that was left over from merge conflict resolution. This duplicate assignment may have been causing Flutter build compilation issues.

lib/features/iptv/screens/player_screen.dart

@@ -440,7 +440,6 @@ class _PlayerScreenState extends ConsumerState<PlayerScreen> {
             ..style.border = 'none'
             ..style.width = '100%'
             ..style.height = '100%'
-            ..style.height = '100%'
             ..allow = 'autoplay; fullscreen; picture-in-picture';
           return iframe;
         },