Fix Event & EventType resource issues and apply formatting

- Fix EventType deletion error handling (constraint violations)
- Fix Event update error (package_id column missing)
- Fix Event Type dropdown options (JSON display issue)
- Fix EventPackagesRelationManager query error
- Add missing translations for deletion errors
- Apply Pint formatting

tests/Feature/Api/GiftVoucherResendTest.php

@@ -2,11 +2,11 @@
 
 namespace Tests\Feature\Api;
 
+use App\Mail\GiftVoucherIssued;
 use App\Models\GiftVoucher;
 use Illuminate\Foundation\Testing\RefreshDatabase;
 use Illuminate\Support\Facades\Mail;
 use Tests\TestCase;
-use App\Mail\GiftVoucherIssued;
 
 class GiftVoucherResendTest extends TestCase
 {