pass token instead of object in refresh callback

README.md

@@ -89,15 +89,13 @@ in AppDelegate.m add
 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
 {
 ....
-[FIRApp configure]; <-- add this line
+  [FIRApp configure]; <-- add this line
 }
 
 //add this method
-- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)notification {
-[[NSNotificationCenter defaultCenter] postNotificationName: FCMNotificationReceived
-object:self
-userInfo:notification];
-
+- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)notification fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))handler {
+  [[NSNotificationCenter defaultCenter] postNotificationName:FCMNotificationReceived object:self userInfo:notification];
+  handler(UIBackgroundFetchResultNoData);
 }
 ```
 
@@ -120,8 +118,8 @@ In [firebase console](https://console.firebase.google.com/), you can get `google
     this.notificationUnsubscribe = FCM.on('notification', (notif) => {
       // there are two parts of notif. notif.notification contains the notification payload, notif.data contains data payload
     });
-    this.refreshUnsubscribe = FCM.on('refresh', (data) => {
-      console.log(data.token)
+    this.refreshUnsubscribe = FCM.on('refreshToken', (token) => {
+      console.log(token)
       // fcm token may not be available on first load, catch it here
     });
   }

android/src/main/java/com/evollu/react/fcm/FIRMessagingModule.java

@@ -96,10 +96,7 @@ public class FIRMessagingModule extends ReactContextBaseJavaModule implements Li
                 if (getReactApplicationContext().hasActiveCatalystInstance()) {
                     String token = intent.getStringExtra("token");
 
-                WritableMap params = Arguments.createMap();
-                params.putString("token", token);
-
-                sendEvent("FCMTokenRefreshed", params);
+                    sendEvent("FCMTokenRefreshed", token);
                     abortBroadcast();
                 }
             }

ios/RNFIRMesssaging.m

@@ -86,9 +86,7 @@ RCT_REMAP_METHOD(getFCMToken,
 
 - (void) onTokenRefresh
 {
-  NSDictionary *info = @{@"token":[[FIRInstanceID instanceID] token]};
-  [_bridge.eventDispatcher sendDeviceEventWithName:@"FCMTokenRefreshed"
-                                                   body:info];
+  [_bridge.eventDispatcher sendDeviceEventWithName:@"FCMTokenRefreshed" body:[[FIRInstanceID instanceID] token]];
 }
 
 RCT_EXPORT_METHOD(requestPermissions)