Issue

CORS seems to be missing when generating the NextJs frontend with a FastAPI backend.

Reproduction Steps

1. Create an app with the agentic RAG option (create-llama version 0.3.16)
2. Run frontend and backend and send a message

Fix

Just need to add CORS back.
Would've created a PR to fix this, but am held up today, so just reporting the issue here for now :)