[iOS] [Bug report] isCallActive return undefined

As docs in https://reactnative.dev/docs/native-modules-ios, ReactNative method always return void so to pass value to JS layer, we need to use callback, Promise or eventEmitter.

Current iOS implement. Return boolean value in this method doesn't send to JS layer

+ (BOOL)isCallActive:(NSString *)uuidString
{
    CXCallObserver *callObserver = [[CXCallObserver alloc] init];
    NSUUID *uuid = [[NSUUID alloc] initWithUUIDString:uuidString];

    for(CXCall *call in callObserver.calls){
        NSLog(@"[RNCallKeep] isCallActive %@ %d ?", call.UUID, [call.UUID isEqual:uuid]);
        if([call.UUID isEqual:[[NSUUID alloc] initWithUUIDString:uuidString]] && !call.hasConnected){
            return true;
        }
    }
    return false;
}

Js index:

isCallActive = async(uuid) => await RNCallKeepModule.isCallActive(uuid);

I already tried with Promise method, it's work but not for my case.
I needed to call this method each second so I changed to event emitter to prevent "illegal callback invocation from native module" error.

PR is not available atm.

Start with the iOS native-module implementation of isCallActive and the JS index wrapper, using the linked React Native native-modules documentation. Reproduce the current undefined result and trace how the boolean crosses the native-to-JS boundary during once-per-second calls. Done means JavaScript reliably receives the call-active boolean without the reported illegal callback invocation.