title: Update the email verification status without reloading page
body: <p>After registering in my web app, i redirect the user to a page, where he is told to verify his email. Once he has done that, i want to automatically detect the change of the verificationStatus and then change the page. Something along those lines.</p>
  
  <pre><code>auth.user.subscribe(user =&gt; {
    if (!!user &amp;&amp; user.emailVerified === true) {
      this.redirectToLogin();
    }
  });
  </code></pre>
  
  <p>I couldn't find any way to detect changes of the emailVerified status, so I thought, maybe have an interval runnning that is updating the user data every now and then, but I couldn't find a way how to refresh the user data from firebase authentication.</p>
  
  <p>Is there a way to update the user data without reloading/refreshing the page? Do i have to refresh the authState? If possible, how can i do that?</p>
  
  <p>Is what I want to do, even possible?</p>