refactor: one line

Co-authored-by: shenlong <139912620+shenlong-tanwen@users.noreply.github.com>

mobile/lib/presentation/widgets/asset_viewer/video_viewer.widget.dart

@@ -104,7 +104,9 @@ class NativeVideoViewer extends HookConsumerWidget {
             throw Exception('No file found for the video');
           }
 
-          final source = await VideoSource.init(path: file.path, type: VideoSourceType.file);
+          // Pass a file:// URI so Android's Uri.parse doesn't
+          // interpret characters like '#' as fragment identifiers.
+          final source = await VideoSource.init(path: file.uri.toString(), type: VideoSourceType.file);
           return source;
         }