Enhance error handling and logging in M3U and XML downloading processes; implement proper application shutdown in MainViewModel; introduce PlaylistSettings for configurable URLs and timeout settings.

TV Player/Handlers/MediaViewerHandler.cs

@@ -1,24 +1,5 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace TV_Player.MAUI
+namespace TV_Player.MAUI
 {
-//    public partial class MediaViewerHandler
-//    {
-//        public static IPropertyMapper<MediaViewer, MediaViewerHandler> PropertyMapper =
-//            new PropertyMapper<MediaViewer, MediaViewerHandler>()
-//            {
-//            };
-
-//        public static CommandMapper<MediaViewer, MediaViewerHandler> CommandMapper = new(ViewCommandMapper)
-//        {
-//        };
-
-//        public MediaViewerHandler() : base(PropertyMapper, CommandMapper)
-//        {
-//        }
-//    }
+    // MediaViewerHandler is currently not implemented
+    // This is reserved for custom platform-specific media player implementations
 }