Refactor isHidden property in ContentTree Node for consistency and optimization

Author: MateuszKolankowski

src/lib/REST/Output/ValueObjectVisitor/ContentTree/Node.php

@@ -53,8 +53,7 @@ public function visit(Visitor $visitor, Generator $generator, $data)
         $generator->startValueElement('isInvisible', $generator->serializeBool($data->isInvisible));
         $generator->endValueElement('isInvisible');
 
-        $generator->startValueElement('isHidden', $generator->serializeBool($data->isHidden));
-        $generator->endValueElement('isHidden');
+        $generator->valueElement('isHidden', $generator->serializeBool($data->isHidden));
 
         $generator->startValueElement('displayLimit', $data->displayLimit);
         $generator->endValueElement('displayLimit');

src/lib/REST/Value/ContentTree/Node.php

@@ -35,8 +35,7 @@ class Node extends RestValue
     /** @var bool */
     public $isInvisible;
 
-    /** @var bool */
-    public $isHidden;
+    public bool $isHidden;
 
     /** @var int */
     public $displayLimit;