Show last sync time in notes (overview)

Is your feature request related to a problem? Please describe.

Sometimes, the notes fail to synchronize, so when I edit an accidentally outdated note on a secondary phone that was edited before on a primary device, the new modifications will result in modifying an outdated note which is then synced to the primary phone which in the end, causes data loss.

Describe the solution you'd like

I would like to know the last time when notes were synchronized not only in the notes overview but also in every individual note. For the latter, this could be realized with an extra icon in the top right that shows if upon opening the note, the phone was able to sync which could be shown by a green check-mark, if synchronization is pending or delayed shown by an orange clock with circle, and when no synchronization is possible by a red attention sign. When tapping the icon, it will let the user know the date and time of last synchronization.

Describe alternatives you've considered

Currently, it's pretty much gambling if synchronization between phones happened and I continue editing where I left off. In fact, I'm always risking to lose data in comprehensive notes.

Additional context

No response

The issue names no files or tests. Start by locating the notes overview, individual note screen, and synchronization status handling in the Android client. Done should include a visible last-sync indicator in both views, with clear states for successful, pending or delayed, and unavailable synchronization, plus the date and time when requested.