We rename `getPeerMonitor` to `getOrCreatePeerMonitor` for clarity - it will now send an online event when the peer monitor is being created, which means we will only start counting the peer as online when it has opened a channel with us.
We rename `getPeerMonitor` to `getOrCreatePeerMonitor` for clarity - it will now send an online event when the peer monitor is being created, which means we will only start counting the peer as online when it has opened a channel with us.