change block personcontent to content more consistent with other templates and less need for if-statements

src/Bundle/ChillPersonBundle/Resources/views/Person/layout.html.twig

@@ -25,7 +25,7 @@
 {% block layout_wvm_content %}
     <div class="row justify-content-center">
         <div class="col-md-10 col-xxl">
-            {% block personcontent %}{# block personcontent empty #}{% endblock %}
+            {% block content %}{# block content empty #}{% endblock %}
         </div>
     </div>
 {% endblock %}