public TrayIconViewModel(MatrixApp app)
        {
            TooltipText = FormatLabel(DateTime.MinValue, DateTime.MinValue);
            // Update the tooltip description as new items come in

            app.Updates
            .Subscribe(x =>
            {
                var lastEntry   = x.Value;
                var lastChecked = x.Timestamp;
                TooltipText     = FormatLabel(lastEntry, lastChecked);
            });
        }
 public static TrayIconViewModel Create(MatrixApp app) => new TrayIconViewModel(app);