public JumpListVM(INavigation navigation) : base(navigation)
        {
            JumpList = MockData();

            JumpList = new ObservableCollection <JumpListItemModel>(JumpList.Distinct().ToList());
            //Items = Items.OrderBy(x => x).ToList();

            GroupAndSort();

            IsLoading = $"IsLoading{DateTime.Now}";
        }