Remove check for title in background firebase notifications (#612)

* Remove check for title in background firebase notifications
Background notifications can still contain a title key, and this is erroneously not showing notifications that it should be.
This fixes getInitialNotification() on Android.

* Add back semicolon

lib/android/app/src/main/java/com/wix/reactnativenotifications/core/notification/PushNotificationProps.java

@@ -23,7 +23,7 @@ public Bundle asBundle() {
     }
 
     public boolean isFirebaseBackgroundPayload() {
-        return mBundle.containsKey("google.message_id") && !mBundle.containsKey("title");
+        return mBundle.containsKey("google.message_id");
     }
 
     @Override