fix: standardize language to English in README and AlertSettings

feat: add 24 model factories for Help, Shop, Community, Game, User domains

- Translate mixed Dutch/English strings in README.md and AlertSettings.php
- Add HasFactory trait to 23 models
- Create factories for Help (6), Shop (4), Community (5), Game (2), User (7)

app/Models/User/Referral.php

@@ -4,10 +4,12 @@ declare(strict_types=1);
 
 namespace App\Models\User;
 
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 
 class Referral extends Model
 {
+    use HasFactory;
     #[\Override]
     protected $guarded = ['id', 'created_at', 'updated_at', 'user_id', 'referrer_id'];
 }