message: Add prebuild script to site package
diff: "scripts": {
  "postinstall": "yarn upgrade bold-ui",
  "start": "gatsby develop",
  - "build": "gatsby build"
  + "build": "gatsby build",
  + "prebuild": "yarn install"
  },
  "dependencies": {
  "@mdx-js/mdx": "1.5.5",
  