/// <summary>
/// Invoked when user clicks a button requesting link to more information.
/// </summary>
/// <param name="sender">A button with a Tag that contains hyperlink string.</param>
/// <param name="e"></param>
private async void ButAboutHyperlink_Click(object sender, RoutedEventArgs e)
{
_ = e; // Discard unused parameter.
await LibMPC.ButtonHyperlinkLaunchAsync((Button)sender);
}
