public OverviewVM(IRepository<ToDoItem> toDoRepo)
    {
        _toDoRepo = toDoRepo ?? throw new ArgumentNullException("toDoRepo");
        IsFaulted = false;
        ErrorMessage = string.Empty;
    }

    public async Task LoadData()
    {
        try
        {
            ToDoItems = await _toDoRepo.GetAsync();
            IsFaulted = false;
            ErrorMessage = string.Empty;
        }
        catch (Exception)
        {
            IsFaulted = true;
            ErrorMessage = "Unable to Load ToDo Items";
        }
    }