fix missing module

Author: dwightjack

src/_js/service-worker.js

@@ -1,6 +1,5 @@
 import { registerRoute } from 'workbox-routing';
 import { StaleWhileRevalidate, NetworkFirst } from 'workbox-strategies';
-import './modules/message-worker';
 
 const cacheName = 'fevr-v2-cache';
 const listRegExp = /^\/(index\.html|eventi\/index\.html)/;