Notification when the Offline Cache will be deleted

Hi,

a nice feature would be a setting for a notification that will be displayed before the offline cache will be deleted and no longer can be used. I think on an option to en- or disable the notification would be good. Maybe it is possible to adjust the time before the notification appears (4 hours, 8 hours, 1 day, 2 days for example..)

Thanks!
Best Regards,
Min