Firebase Auth after upgrade to 4.0 with remix

async function getCurrentFirebaseUser() {
  return new Promise<FirebaseUser>((resolve, reject) => {
    const unsubscribe = onAuthStateChanged(firebaseAuth, user => {
      unsubscribe();
      resolve(user as FirebaseUser | PromiseLike<FirebaseUser>);
    }, reject);
  });
}

async function getCurrentFirebaseUser() {
  return new Promise<FirebaseUser>((resolve, reject) => {
    const unsubscribe = onAuthStateChanged(firebaseAuth, user => {
      unsubscribe();
      resolve(user as FirebaseUser | PromiseLike<FirebaseUser>);
    }, reject);
  });
}