Fixing docker

Adding service worker
Adding a sigint

webpack.config.js

@@ -1,11 +1,11 @@
 const MiniCssExtractPlugin = require('mini-css-extract-plugin');
 const nodeExternals = require('webpack-node-externals');
+const CopyPlugin = require('copy-webpack-plugin');
 const path = require('path');
 
 module.exports = function (env, _) {
   const base = {
-    // mode: "production",
-    mode: 'development',
+    // mode is set by package.json flags
     entry: './src/server/index.tsx', // Point to main file
     output: {
       path: path.resolve(process.cwd(), 'dist'),
@@ -40,6 +40,9 @@ module.exports = function (env, _) {
       new MiniCssExtractPlugin({
         filename: 'styles/styles.css',
       }),
+      new CopyPlugin({
+        patterns: [{ from: './src/assets', to: './assets' }],
+      }),
     ],
   };