actions.phtml: Load actions from shareables and user preferences

refs #5600

modules/monitoring/application/views/scripts/show/components/actions.phtml

@@ -3,6 +3,10 @@
 use Icinga\Web\Navigation\Navigation;
 
 $navigation = new Navigation();
+$navigation->load($object->getType() . '-action');
+foreach ($navigation as $item) {
+    $item->setObject($object);
+}
 
 // add warning to links that open in new tabs to improve accessibility, as recommended by WCAG20 G201
 $newTabInfo = sprintf('<span class="info-box display-on-hover"> %s </span>', $this->translate('opens in new window'));