feat: secure adminer etc ...

app/Providers/HorizonServiceProvider.php

@@ -2,6 +2,7 @@
 
 namespace App\Providers;
 
+use App\Models\User;
 use Illuminate\Support\Facades\Gate;
 use Laravel\Horizon\Horizon;
 use Laravel\Horizon\HorizonApplicationServiceProvider;
@@ -27,8 +28,6 @@ class HorizonServiceProvider extends HorizonApplicationServiceProvider
      */
     protected function gate(): void
     {
-        Gate::define('viewHorizon', function ($user = null) {
-            return true;
-        });
+        Gate::define('viewHorizon', fn (?User $user): bool => $user?->isAdmin() === true);
     }
 }