changing gundb link

app/src/providers/p2p-database-gun/p2p-database-gun.ts

@@ -8,7 +8,7 @@ export class P2pDatabaseGunProvider {
   osnPrefix: string = "hybridOSN-v1.0.0";
 
   constructor() {
-    this.gun = Gun(["https://hybrid-osn.herokuapp.com/gun"]);
+    this.gun = Gun(["https://hosn-twitter-app.herokuapp.com/gun"]);
   }
 
   /**