docs: revise main docs outline (#10502)

www/apps/ui/package.json

@@ -5,7 +5,8 @@
   "scripts": {
     "dev": "next dev",
     "dev:monorepo": "yarn dev -p 3002",
-    "build": "yarn copy-colors && next build",
+    "contentlayer:build": "contentlayer build",
+    "build": "yarn copy-colors && yarn contentlayer:build && next build",
     "start": "next start",
     "start:monorepo": "yarn start -p 3002",
     "lint": "next lint --fix",