private void deleteFolderToolStripMenuItem_Click(object sender, EventArgs e)
{
if (!(bookmarksTree.SelectedNode?.Tag is BookmarkFolder treeNode))
{
return;
}
if (
MessageBox.Show(this, Resources.Are_you_sure_you_want_to_delete_this_folder_, Resources.Remove_folder_,
MessageBoxButtons.YesNo) == DialogResult.Yes)
{
_bookmarkManager.DeleteBookmarkFolder(treeNode);
AlterTreeViewState(TreeViewFolderStateChange.FolderRemoved, treeNode);
}
}