Serialize ticket filter parameters with JSON groups in person list view.

- Updated `list.html.twig` to serialize `ticketFilterParams` using the 'read' group for JSON normalization.

src/Bundle/ChillTicketBundle/src/Resources/views/Person/list.html.twig

@@ -14,7 +14,7 @@
 {% block js %}
     {{ parent() }}
     <script type="text/javascript">
-        window.ticketFilterParams = {{ ticketFilterParams|serialize|raw }};
+        window.ticketFilterParams = {{ ticketFilterParams|serialize('json', {'groups': ['read']})|raw }};
     </script>
     {{ encore_entry_script_tags('vue_ticket_list') }}
 {% endblock %}