Add @object-ui/fields dependency to site package.json

Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>

Author: Copilot

apps/site/package.json

@@ -13,6 +13,7 @@
     "@monaco-editor/react": "^4.6.0",
     "@object-ui/components": "workspace:*",
     "@object-ui/core": "workspace:*",
+    "@object-ui/fields": "workspace:*",
     "@object-ui/plugin-aggrid": "workspace:*",
     "@object-ui/plugin-calendar": "workspace:*",
     "@object-ui/plugin-charts": "workspace:*",