build: set correct option value

Author: Matt Lewis

webpack.config.ts

@@ -133,7 +133,7 @@ export default (env = 'development') => {
       ),
       new HtmlWebpackPlugin({
         template: path.join(__dirname, 'demos', 'index.ejs'),
-        chunksSortMode: false
+        chunksSortMode: 'none'
       }),
       ifProduction(new OfflinePlugin())
     ]),