public static void SaveAll()
{
Directory.CreateDirectory(Path);
CategoriesIO.SaveData(Categories);
foreach (var category in Categories)
{
category.SaveTaskLists();
category.UpdateDeadlinesIndicator();
}
ActivitiesIO.SaveData(Activities);
TopicsIO.SaveData(Topics);
Settings.Default.Save();
foreach (var category in RecycleBin)
{
category.ClearFile();
}
RecycleBin.Clear();
MainWindowViewModel.ShowInStatusBar($"Saved at {DateTime.Now.TimeOfDay:%h\\:mm\\:ss}");
}