title: Ionic Angular Capacitor Firebase: Google Login
body: <p>Ionic Angular Capacitor Firebase app errors</p>
  <p>using @codetrix-studio/capacitor-google-auth the suggested code is:</p>
  <pre><code>Plugins.GoogleAuth.signIn();
  
  async googleSignIn() {
    let googleUser = await Plugins.GoogleAuth.signIn();
    const credential = auth.GoogleAuthProvider.credential(googleUser.authentication.idToken);
    return this.afAuth.auth.signInAndRetrieveDataWithCredential(credential);
  }
  </code></pre>
  <p>Error msg: property 'auth' does not exist on type AngularFireAuth
  I can get it to work with email signup but not with Google. thanks for any ideas!</p>