title: How to add multiple Auth in flm.php for unisharp/laravel-filemanager
body: <p>i am using laravel 5 4 and "unisharp/laravel-filemanager": "~1.8"</p>
  
  <p>in my project i have multiple Auth like member, client, manager, reseller but only manager and client have access to file upload.
  here is my flm.php</p>
  
  <pre><code>'middlewares' =&gt; ['web', 'auth:client', 'auth:manager'],
  </code></pre>
  
  <p>this it not working.
  but
  'middlewares' => ['web', 'auth:client'], // working but only client can upload but manager can't upload
  or
  'middlewares' => ['web', 'auth:manager'], // working but only manager can upload but client can't upload</p>
  
  <p>i also tried to use but it not working too
  'user_field' => App\Handlers\ConfigHandler::class,
  and handlers config</p>
  
  <pre><code>if (Auth::guard('client')-&gt;check()) {
    return Auth::guard('client')-&gt;user()-&gt;id;
  }
  if (Auth::guard('manager')-&gt;check()) {
    return Auth::guard('manager')-&gt;user()-&gt;id;
  }
  </code></pre>
  
  <p>i need middlewares working for both client and manager</p>
  
  <p>thanks</p>