fix: app shows nothing during build:prod

Author: paibamboo

config/utils/replaceWithProdScripts.js

@@ -1,5 +1,8 @@
 const fs = require('fs');
 const manifest = require('../../build/manifest');
+const utils = require('../utils');
+
+utils.copySync('./src/index.html', './build/index.html');
 
 const scriptFileNames = [];
 Object.keys(manifest).forEach((key) => {

config/webpack/prod.js

@@ -92,6 +92,5 @@ utils.copySyncIfDoesntExist('./config/main.js', './config/main.local.js');
 utils.createIfDoesntExist('./build');
 utils.createIfDoesntExist('./build/public');
 utils.copySync('./src/favicon.ico', './build/public/favicon.ico', true);
-utils.copySync('./src/index.html', './build/index.html');
 
 module.exports = config;