Activate default Add UserAction in card deck example.

Since 'Save' is deactivated in demo, error is not triggered though.

Suggest that in repo demos are indeed saving - only for online demo it is not.

demos/collection/card-deck.php

@@ -47,6 +47,6 @@
  'country' => ['required' => true, 'ui' => ['form' => [Form\Control\Lookup::class, 'model' => new Country($app->db), 'placeholder' => 'Please select a country.']]],
 ];
 
-$deck = CardDeck::addTo($app, ['noRecordScopeActions' => ['request_info'], 'singleScopeActions' => ['book']]);
+$deck = CardDeck::addTo($app);
 
 $deck->setModel($countries, ['Cost'], [$countries->fieldName()->iso, $countries->fieldName()->iso3]);