private void Btn1_Click(object sender, RoutedEventArgs e)
        {
            var dialog = new FullScreenImage();

            dialog.ImgSource = this.trackCover.Source;
            dialog.ShowDialog();
        }
        private void Button_Click_1(object sender, RoutedEventArgs e)
        {
            var dialog = new FullScreenImage();

            dialog.ImgSource = this.playlistImage.Source;
            dialog.ShowDialog();
        }