title: Share to view page title
body: <p>Im getting error:
  <code>Undefined variable: pageTitle (View: /.../resources/views/layouts/auth.blade.php)</code></p>
  <p>Line: <code>&lt;title&gt;{{ $pageTitle . ' | ' . $settings-&gt;company_name }}&lt;/title&gt;</code></p>
  <p>I'm using fortify auth and I want to share page title to auth blade.</p>
  <p>My <code>__construct</code> code:</p>
  <pre><code>public function __construct()
  {
      parent::__construct();
      \View::share('pageTitle', 'test');
      $this-&gt;middleware('guest')-&gt;except('logout');
  } 
  </code></pre>
  <p>I've tried also like this:</p>
  <pre><code>public function __construct()
  {
      parent::__construct();
      view()-&gt;share('pageTitle', 'test');
      $this-&gt;middleware('guest')-&gt;except('logout');
  } 
  </code></pre>
  <p>I'm using laravel 8.</p>