getPeerStatus method
Returns the status of a peer.
This method checks if a peer is considered online based on the last
time it was seen and the configured peerOnlineTimeout.
peerId The ID of the peer to check.
Returns true if the peer is online, false otherwise.
Implementation
bool getPeerStatus(PeerId peerId) =>
(routes[peerId]?.lastSeen ?? 0) + peerOnlineTimeout.inMilliseconds >
_now;