Using npm-run-all --parallel in npm scripts

package.json

"scripts": {
  "start": "npm-run-all --parallel server watch:extension watch:lint",
  "server": "cross-env NODE_ENV=development webpack-dev-server --config webpack.web.js",
  "watch": "npm-run-all --parallel watch:*",
  "watch:web": "cross-env NODE_ENV=development webpack --watch --progress --colors --config webpack.web.js",
  "watch:extension": "cross-env NODE_ENV=development webpack --watch --progress --colors --config webpack.extension.js",
  "watch:lint": "onchange -p -v \"src/**/*.js\" -- npm run lint",
  "lint": "eslint --color .",
},