Add nprofile property to profile model

models/profile.ts

@@ -59,6 +59,13 @@ export default class Profile {
     return nip19.npubEncode(this.pubkey);
   }
 
+  get nprofile(): string {
+    return nip19.nprofileEncode({
+      pubkey: this.pubkey,
+      relays: [config.relay_urls[0]],
+    });
+  }
+
   get profileUrl(): string {
     return `${config.base_url}/@${this.username}`;
   }