private void btnShowTrending_Click(object sender, RoutedEventArgs e)
        {
            //declare new trending window
            Trending tr = new Trending();

            //show trending window
            tr.ShowDialog();
        }
        private void btnQuit_Click(object sender, RoutedEventArgs e)
        {
            //create and show new trending window
            Trending tr = new Trending();

            tr.ShowDialog();
            //close window
            this.Close();
        }