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

app/Filament/Resources/EventResource.php

@@ -65,14 +65,15 @@ class EventResource extends Resource
                 ->required(),
             Select::make('event_type_id')
                 ->label(__('admin.events.fields.type'))
-                ->options(EventType::query()->pluck('name', 'id'))
+                ->options(fn () => EventType::all()->pluck('name.de', 'id'))
                 ->searchable(),
             Select::make('package_id')
                 ->label(__('admin.events.fields.package'))
                 ->options(\App\Models\Package::query()->where('type', 'endcustomer')->pluck('name', 'id'))
                 ->searchable()
                 ->preload()
-                ->required(),
+                ->required()
+                ->visibleOn('create'),
             TextInput::make('default_locale')
                 ->label(__('admin.events.fields.default_locale'))
                 ->default('de')