refactor local transport testing and local memberhsip initialization

src/room/GroupCallView.tsx

@@ -159,6 +159,7 @@ export const GroupCallView: FC<Props> = ({
     };
   }, [rtcSession]);
 
+  // TODO move this into the callViewModel LocalMembership.ts
   useTypedEventEmitter(
     rtcSession,
     MatrixRTCSessionEvent.MembershipManagerError,

src/room/InCallView.tsx

@@ -266,7 +266,7 @@ export const InCallView: FC<InCallViewProps> = ({
   const sharingScreen = useBehavior(vm.sharingScreen$);
 
   const ringOverlay = useBehavior(vm.ringOverlay$);
-  const fatalCallError = useBehavior(vm.configError$);
+  const fatalCallError = useBehavior(vm.fatalError$);
   // Stop the rendering and throw for the error boundary
   if (fatalCallError) throw fatalCallError;