private void buttonSave_OnClick(object sender, RoutedEventArgs e)
{
UserData.setWorkDuration(iudWorkDuration.Value.Value);
UserData.setTrayIconColor(cpTrayIcon.SelectedColor.Value);
UserData.setBreaks(lBreak.ToList());
UserData.setSubtitles(lSubtitle.ToList());
UserData.setThresholds(lThreshold.ToList());
Close();
}