re-enable service worker

Password has been turned off on the website, so we can enable this again.

src/index.tsx

@@ -10,7 +10,7 @@ import { applyMiddleware, createStore } from 'redux';
 import { createLogger } from 'redux-logger';
 import createSagaMiddleware from 'redux-saga';
 import './index.scss';
-// import { success, update } from './actions/service-worker';
+import { success, update } from './actions/service-worker';
 import App from './components/App';
 import NotificationStack from './components/NotificationStack';
 import rootReducer from './reducers';
@@ -60,8 +60,7 @@ ReactDOM.render(
 // If you want your app to work offline and load faster, you can change
 // unregister() to register() below. Note this comes with some pitfalls.
 // Learn more about service workers: https://bit.ly/CRA-PWA
-serviceWorker.unregister();
-// serviceWorker.register({
-//     onUpdate: (r) => store.dispatch(update(r)),
-//     onSuccess: (r) => store.dispatch(success(r)),
-// });
+serviceWorker.register({
+    onUpdate: (r) => store.dispatch(update(r)),
+    onSuccess: (r) => store.dispatch(success(r)),
+});