BUGFIX: Fix usage of node.nodeAggregateId in fluid

Fix usage in `Index` fluid template of `Neos\Neos\Controller\Service\NodesController`

Relates: #4156

Author: ahaeslich

Neos.Neos/Resources/Private/Templates/Service/Nodes/Index.html

@@ -26,7 +26,7 @@ <h1>{neos:backend.translate(id: 'service.nodes.title', value: 'Nodes')}</h1>
                             </f:if>
                         </f:alias>
                         <label class="node-label">{node.label}</label>
-                        (<span class="node-identifier">{node.nodeAggregateId}</span>)
+                        (<span class="node-identifier">{node.nodeAggregateId.value}</span>)
                         [<span class="node-type">{node.nodeType.name}</span>]
                         <f:link.action rel="node-show" controller="Service\Nodes" action="show" arguments="{identifier: node.nodeAggregateId.value}" format="html">{neos:backend.translate(id: 'service.nodes.show', value: 'Show')}</f:link.action>
                     </li>