fix namespace and use spelling mistake

apps/backend/app/Services/FormatDate.php

@@ -1,6 +1,6 @@
 <?php
 
-namespace app\Services;
+namespace App\Services;
 
 use Carbon\Carbon;
 

apps/backend/app/Services/GetRole.php

@@ -1,6 +1,6 @@
 <?php
 
-namespace app\Services;
+namespace App\Services;
 
 class GetRole
 {

apps/backend/app/Services/TypesenseService.php

@@ -1,6 +1,6 @@
 <?php
 
-namespace app\Services;
+namespace App\Services;
 
 use App\Models\Event;
 use App\Models\User;

apps/backend/app/Services/UserService.php

@@ -1,7 +1,7 @@
 <?php
 
-namespace app\Services;
-use app\Models\User;
+namespace App\Services;
+use App\Models\User;
 
 class UserService
 {