Make sure the correct bundle is loaded in prod

In prod (or rather when there is no package manger), the fallbackResource is used. And by default that is main.jsbundle. So ensure the thread name is passed along

ios/ThreadManager.m

@@ -20,7 +20,7 @@ RCT_REMAP_METHOD(startThread,
 
   int threadId = abs(arc4random());
 
-  NSURL *threadURL = [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:name fallbackResource:nil];
+  NSURL *threadURL = [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:name fallbackResource:name];
   NSLog(@"starting Thread %@", [threadURL absoluteString]);