Remove fallback external relays from DEFAULT_RELAYS in constants.js to streamline relay connection handling.

app/web/src/constants.js

@@ -2,13 +2,4 @@
 export const DEFAULT_RELAYS = [
   // Use the local relay WebSocket endpoint
   `wss://${window.location.host}/ws`,
-  // Fallback to external relays if local fails
-  "wss://relay.damus.io",
-  "wss://relay.nostr.band",
-  "wss://nos.lol",
-  "wss://relay.nostr.net",
-  "wss://relay.minibits.cash",
-  "wss://relay.coinos.io/",
-  "wss://nwc.primal.net",
-  "wss://relay.orly.dev",
 ];