remove unecessary gates for users routes and add UserPolicy

app/Providers/GateServiceProvider.php

@@ -3,6 +3,7 @@
 namespace App\Providers;
 
 use App\Models\User;
+use App\Policies\UserPolicy;
 use Illuminate\Support\Facades\Gate;
 use Illuminate\Support\ServiceProvider;
 
@@ -21,16 +22,6 @@ class GateServiceProvider extends ServiceProvider
      */
     public function boot(): void
     {
-        Gate::define('me', function (User $user) {
-            return true;
-        });
-
-        Gate::define('getUserTasks', function (User $user) {
-            return true;
-        });
-
-        Gate::define('searchUsers', function (User $user) {
-            return true;
-        });
+        Gate::policy(User::class, UserPolicy::class);
     }
 }