fix(ui): make mega menus work under strict CSP

packages/ui/component-reference.json

@@ -8401,6 +8401,13 @@
           "default": "false",
           "options": []
         },
+        {
+          "name": "openOnHover",
+          "type": "boolean",
+          "required": false,
+          "default": "true",
+          "options": []
+        },
         {
           "name": "actionLabel",
           "type": "string",