chore: Include dev pages code as part of build artifacts

Author: jperals

package.json

@@ -7,7 +7,7 @@
   },
   "homepage": "https://cloudscape.design",
   "scripts": {
-    "prebuild": "rm -rf lib dist .cache",
+    "prebuild": "rm -rf lib dist .cache && mkdir lib",
     "build": "npm-run-all build:pkg --parallel build:src:* --parallel build:pages:* build:themeable",
     "lint": "npm-run-all --parallel lint:*",
     "lint:eslint": "eslint --ignore-path .gitignore --ext ts,tsx,js .",
@@ -35,7 +35,8 @@
     "build:src:environment": "node scripts/environment",
     "build:themeable": "node scripts/themeable-source",
     "build:pages:vite": "vite build",
-    "build:pages:tsc": "tsc -p pages/tsconfig.json"
+    "build:pages:tsc": "tsc -p pages/tsconfig.json",
+    "build:pages:src": "mkdir lib/dev-pages && mkdir lib/dev-pages/internal && cp package-lock.json lib/dev-pages/internal && cp -r pages lib/dev-pages"
   },
   "exports": {
     ".": "./index.js",