fix(thirdweb): resolve occasional iframe error during OAuth login (#3903)

### TL;DR
Fix occasional iframe error when logging in with oauth

### What changed?
Removed error throwing for invalid event type in OAuth login flow.

### How to test?
Attempt OAuth login and ensure no errors occur related to iframes.

### Why make this change?
To prevent unnecessary exceptions which impede the OAuth login user experience.

---

Author: gregfromstl

.changeset/unlucky-news-tease.md

@@ -0,0 +1,5 @@
+---
+"thirdweb": patch
+---
+
+Fix occasional iframe error when logging in with oauth

packages/thirdweb/src/wallets/in-app/web/lib/auth/oauth.ts

@@ -111,7 +111,7 @@ export const loginWithOauth = async (options: {
             break;
           }
           default: {
-            reject(new Error(`Invalid event type: ${event.data.eventType}`));
+            // no-op, DO NOT THROW HERE
           }
         }
       };