When we received a remove event from a private group chat out of order,
the chat would not be created.
This was causing some issues if later on we received the previous event.
This commit changes the behavior so that a chat is created.
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.
Andrea Maria Piana
yqrashawn
frank
Omar Basem
Patryk Osmaczko