Robust error reporting and recovery

[ThatXliner]

• Related feat: Offline First Database #6

Basically, we need to handle all of the potential error cases (e.g. no wifi, out of sync, etc) for all the places that can have errors (mutating the entry + initial fetch). Make sure retry functionality exist. Since we're using TanStack Query, this should be fairly easy. The only thing that would potentially make this task hard is that there are no existing (good) error UI implemented.

I haven't tested if the app works offline, so please test that. Ideally, we have some React state on the device that can be synced with the database when it can. The UI should not only reflect on the databases' state.