Only post list of relays when something has changed

[flox1an]

Currently the list of relays is always posted.

Using relays:          wss://nos.lol/, wss://relay.primal.net/, wss://relay.nostr.band/, wss://relay.damus.io/
Publishing relay list (Kind 10002)...
  nsite:nostr relays to broadcast to: [
  'wss://purplepag.es/',
  'wss://user.kindpag.es/',
  'wss://nos.lol/',
  'wss://relay.primal.net/',
  'wss://relay.nostr.band/',
  'wss://relay.damus.io/'
] +0ms
Relay not connected, waiting for connection to publish an event wss://purplepag.es/
Relay not connected, waiting for connection to publish an event wss://user.kindpag.es/
Relay not connected, waiting for connection to publish an event wss://nos.lol/
Relay not connected, waiting for connection to publish an event wss://relay.primal.net/
Relay not connected, waiting for connection to publish an event wss://relay.nostr.band/
Relay not connected, waiting for connection to publish an event wss://relay.damus.io/

This should only be done, when there are changes.