This commit introduces a new `clock` field in the
`communities_settings` table so that it can be leveraged for syncing
community settings across devices.
It alsoe exends existing `syncCommunity` APIs to generate
`SyncCommunitySettings` as well, avoiding sending additional sync messages
for community settings.
When editing communities however, we still sync community settings
explicitly are we aren't syncing the community itself in that case.
We periodically check whether we should backup contacts through waku.
Currently it's not tied to any event, it will only schedule a backup on
a tick, or through the provided API endpoint.
Pascal Precht
Roman Volosovskyi
Andrea Maria Piana
Richard Ramos
Anthony Laibe