fix namespace and use spelling mistake

apps/backend/app/Http/Controllers/UserController.php

@@ -1,22 +1,22 @@
 <?php
 
-namespace app\Http\Controllers;
+namespace App\Http\Controllers;
 
-use app\Mail\CreateUserByAdminMail;
-use app\Mail\DeactivateAccountMail;
-use app\Mail\DeleteAccountMail;
-use app\Mail\EmailChangeConfirmedMail;
-use app\Mail\NotifyEmailChangeMail;
-use app\Mail\RegisterMail;
-use app\Mail\RequestEmailChangeMail;
-use app\Mail\UpdatePasswordMail;
-use app\Mail\UpdateRoleMail;
-use app\Mail\ValidateMail;
-use app\Models\User;
-use app\Notifications\UserRegistered;
-use app\Notifications\VolunteerRoleUpdated;
-use app\Services\GetRole;
-use app\Services\UserService;
+use App\Mail\CreateUserByAdminMail;
+use App\Mail\DeactivateAccountMail;
+use App\Mail\DeleteAccountMail;
+use App\Mail\EmailChangeConfirmedMail;
+use App\Mail\NotifyEmailChangeMail;
+use App\Mail\RegisterMail;
+use App\Mail\RequestEmailChangeMail;
+use App\Mail\UpdatePasswordMail;
+use App\Mail\UpdateRoleMail;
+use App\Mail\ValidateMail;
+use App\Models\User;
+use App\Notifications\UserRegistered;
+use App\Notifications\VolunteerRoleUpdated;
+use App\Services\GetRole;
+use App\Services\UserService;
 use Illuminate\Database\Eloquent\ModelNotFoundException;
 use Illuminate\Http\JsonResponse;
 use Illuminate\Http\Request;