title: Apple Authentication Button doesn't show up using expo-apple-authentication package
body: <p>I'm trying to implement Apple Sign In in my iOS app using the <a href="https://github.com/expo/expo/tree/master/packages/expo-apple-authentication" rel="nofollow noreferrer">expo-apple-authentication</a> package, but I'm not being able to make the button show up. Even though I'm using the exact same code as the documentation:</p>
  <pre><code> &lt;AppleAuthentication.AppleAuthenticationButton
     buttonType={
       AppleAuthentication.AppleAuthenticationButtonType.SIGN_IN
     }
     buttonStyle={
       AppleAuthentication.AppleAuthenticationButtonStyle.BLACK
     }
     cornerRadius={5}
     onPress={() =&gt; {
     }}
   /&gt;
  </code></pre>
  <p>It's worth noticing that the call to AppleAuthentication.isAvailableAsync() returns true.</p>
  <p>I'm testing it in a Simulator. Is it not supposed to work in a dev environment? how am I supposed to test it then?</p>