public void OpenAddDownloadWindow(object sender, RoutedEventArgs e)
        {
            AddDownloadWindow addDownloadWindow = new AddDownloadWindow();

            addDownloadWindow.Owner = this;
            addDownloadWindow.ShowDialog();
        }
        public void OpenAddDownloadWindow(object sender, RoutedEventArgs e)
        {
            AddDownloadWindow addDownloadWindow = new AddDownloadWindow
            {
                Owner = this
            };

            addDownloadWindow.ShowDialog();
            MainWindow.SaveDownloads();
        }