Confirmation dialog when closing the app/desktop client while having unsaved changes

[verymilan]

Hi there, when you close or navigate away from a page with unsaved changes, the confirmation dialog pops up. But when you close the app, it simply closes. (As far as i recall, ) this is how i managed to reset all my timetracking progress from last evening.

Would be good if the app (in my case that electron thing) would prevent you from closing in such a case.