fixed space to play

MainWindow.xaml.cs

@@ -403,6 +403,13 @@ public partial class MainWindow : FluentWindow
     /// Windows has associated with .mkv files (typically the default video
     /// player), so the user can quickly preview a file without leaving the app.
     /// </summary>
+    private void TrackGrid_PreviewKeyDown(object sender, System.Windows.Input.KeyEventArgs e)
+    {
+        if (e.Key != System.Windows.Input.Key.Space) return;
+        OpenSelectedFileInDefaultPlayer();
+        e.Handled = true;
+    }
+
     private void OpenSelectedFileInDefaultPlayer()
     {
         if (FileQueueList.SelectedItem is not QueuedFileItem item) return;