Replaces the comma-separated relay text on the Marmot Group Info
screen with a FlowRow of 55dp relay avatars that open RelayInfo on
tap and copy the URL on long-press, matching the relay-icon pattern
used elsewhere in the app.
To surface whether each configured relay is actually carrying traffic
for the group, MarmotGroupChatroom now tracks the most recent
kind:445 event timestamp observed from each delivering relay and the
info screen renders a green dot when a relay has delivered a group
event within the last 7 days (gray otherwise).
Claude
42e226bf8d