Do not fire persistence event when clicking on refresh button in tabulator header

Author: Monviech

src/opnsense/mvc/app/views/OPNsense/Firewall/filter_rule.volt

@@ -198,6 +198,8 @@
                         `);
 
                         element.find('.inspect-cache-flush').on('click', function () {
+                            // Do not fire persistence event when clicking this tabulator header
+                            event.stopPropagation();
                             ajaxCall(
                                 '/api/firewall/filter/flush_inspect_cache',
                                 {},