wait to delete secondaryDevice conversation after unpairing

js/background.js

@@ -1431,9 +1431,11 @@
       // TODO: we should ensure the message was sent and retry automatically if not
       await libloki.api.sendUnpairingMessageToSecondary(pubKey);
       // Remove all traces of the device
+      setTimeout(() => {
         ConversationController.deleteContact(pubKey);
         Whisper.events.trigger('refreshLinkedDeviceList');
         callback();
+      }, 1000);
     });
   }