Use HAProxyApplyDispatcher in HAProxyFrontend

Author: cclare

pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Models/HAProxyFrontend.inc

@@ -3,6 +3,7 @@
 namespace RESTAPI\Models;
 
 use RESTAPI\Core\Model;
+use RESTAPI\Dispatchers\HAProxyApplyDispatcher;
 use RESTAPI\Fields\Base64Field;
 use RESTAPI\Fields\BooleanField;
 use RESTAPI\Fields\ForeignModelField;