rename *.js to *.jsx

Author: anselm94

web/src/App.js renamed to web/src/App.jsx

@@ -1,7 +1,6 @@
 import React from "react";
 import ReactDOM from "react-dom";
 import App from "./App";
-import * as serviceWorker from "./serviceWorker";
 import { Provider as UrqlProvider, createClient, defaultExchanges, subscriptionExchange } from 'urql';
 import { SubscriptionClient } from 'subscriptions-transport-ws';
 
@@ -25,8 +24,3 @@ ReactDOM.render(
   </UrqlProvider>,
   document.getElementById("root")
 );
-
-// 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();