[HACK] reload of CSS is broken

This makes it real slow, but at least don't have to stop the server

webpack-contrib/mini-css-extract-plugin#23

Author: shepmaster

ui/frontend/webpack.config.js

@@ -30,6 +30,7 @@ module.exports = function(_, argv) {
         developmentFilenameTemplate;
 
   return {
+    cache: false,
     entry: {
       app: ['./index.tsx', './index.scss'],
     },