remove unnecessary code

apps/backend/app/Models/Event.php

@@ -1,6 +1,6 @@
 <?php
 
-namespace apps\backend\app\Models;
+namespace app\Models;
 
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;

apps/backend/app/Models/Task.php

@@ -1,6 +1,6 @@
 <?php
 
-namespace apps\backend\app\Models;
+namespace app\Models;
 
 use Illuminate\Database\Eloquent\Model;
 

apps/backend/app/Models/User.php

@@ -1,6 +1,6 @@
 <?php
 
-namespace apps\backend\app\Models;
+namespace app\Models;
 
 // use Illuminate\Contracts\Auth\MustVerifyEmail;
 use Illuminate\Database\Eloquent\Factories\HasFactory;