private void dgComicsEmpView_MouseDoubleClick(object sender, MouseButtonEventArgs e)
        {
            var comic = (Comic)dgComicsEmpView.SelectedItem;

            var comicAddEdit = new frmComicAddEdit(_comicManager, comic);

            comicAddEdit.ShowDialog();
        }
        private void btnAddComicWindow_Click(object sender, RoutedEventArgs e)
        {
            var addEditForm = new frmComicAddEdit(_comicManager);

            addEditForm.ShowDialog();
        }