private async void ButtonMultiDelete_OnClick(object sender, RoutedEventArgs e)
 => await GameStatsHelper.DeleteGamesWithDialog(this, SelectedGames.ToArray());
 private void ButtonMultiMove_OnClick(object sender, RoutedEventArgs e)
 => GameStatsHelper.MoveGamesToOtherDeckWithDialog(this, SelectedGames.ToArray());