private void newGame_Button_Click(object sender, RoutedEventArgs e)
        {
            NewGame_Menu newGameForm = new NewGame_Menu();

            newGameForm.Show();
            this.Close();
        }
        private void EndGame()
        {
            NewGame_Menu newGame_menu = new NewGame_Menu();

            newGame_menu.Show();
            this.Close();
        }