ios constant Null safety

FirebaseOptions const ios

Implementation

static const FirebaseOptions ios = FirebaseOptions(
  apiKey: 'AIzaSyBLAWUtlg-WIfZHoVVG7zY1-24KDJzLrkk',
  appId: '1:319330223109:ios:ba1f3d77dfd0ade74c886c',
  messagingSenderId: '319330223109',
  projectId: 'fir-auth-example-65a30',
  storageBucket: 'fir-auth-example-65a30.appspot.com',
  iosClientId: '319330223109-asv4euc9ltrpbacq1hnl47pnunfkov2u.apps.googleusercontent.com',
  iosBundleId: 'io.flutter.plugins.firebaseUiExample',
);