Restore RelayPoolTests to damusTests after 9091cb1a removed it
from the Xcode test target unintentionally.
Update its add-relay checks for the current async RelayPool API.
Signed-off-by: Sjors Provoost <sjors@sprovoost.nl>
Move the shared seen, count, and notification update into a
note-id helper.
This commit does not change behavior.
Signed-off-by: Sjors Provoost <sjors@sprovoost.nl>
Sjors Provoost