We have successfully got Android push notifications to work with Firebase and would like to use Firebase for iOS notifications as well. My question is, can we use Firebase with iOS push notifications? In the settings menu I select iOS push notifications but I dont see any Firebase settings under the iOS panel. When I run the program on an iPhone, I successfully generate an APNS token but using this token with Firebase has no effect. Is this just not an option? Can I somehow use the APNS token with Firebase? The documentation isn't clear in the manual or Firebases documentation. Do we have to send our request directly to APNS?