* fix: Accepting or dismissing contact request should mark AC notification as read
* fix: Accepting or declining community request should mark AC notification as read
* fix: Read notification status fo identity verification requests
* fix: Save whole notification object while handling contact requests
* fix: Remove unused functions from activity_center_persistence
* fix: Use Accepted and Dismissed flags for AC notifications with CTA
* fix: Mark notification as unread when we handle accepted verification request
* fix: Replace Warn with Error on fail to save notification, test fixes
* fix: Fix conditions for fetching AC notifications from the db
* fix: Review fixes for err name and conditions array
When discovery fails to be seeded with bootstrap/fallback nodes, it
never recovers.
This commit changes the behavior so that status-go retries fetching
bootnodes, and restarts discovery when that happens.
If a contact update or a legacy contact request is sent, we create a
notification for the user in the activity center so it can be replied
to.
If at a later date a new contact request is received from the same user,
this will replace it, so the proper message can be displayed.