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/PackageSeederTest.php

@@ -11,7 +11,7 @@ class PackageSeederTest extends TestCase
 {
     use RefreshDatabase;
 
-    public function testStarterPackageHasSingleEventQuota(): void
+    public function test_starter_package_has_single_event_quota(): void
     {
         $this->seed(PackageSeeder::class);