add pnpm version to packages.json

Author: Lagoja

docs/app/package.json

@@ -2,11 +2,12 @@
     "name": "devbox",
     "version": "0.0.0",
     "private": true,
+    "packageManager": "[email protected]",
     "scripts": {
         "docusaurus": "docusaurus",
         "start": "docusaurus start",
         "build": "docusaurus build && pnpm run postbuild",
-        "postbuild": "mkdir -p tmp && cp -r build/* tmp/ && mkdir -p build/docs && cp -r tmp/* build/docs/ && rm -rf tmp",  
+        "postbuild": "mkdir -p tmp && cp -r build/* tmp/ && mkdir -p build/docs && cp -r tmp/* build/docs/ && rm -rf tmp",
         "swizzle": "docusaurus swizzle",
         "deploy": "docusaurus deploy",
         "clear": "docusaurus clear",