feat: prevent UI from showing raw JSON when AI response is empty#95

Pavilion4ik wants to merge 3 commits intoopenedx:mainopenedx/openedx-ai-extensions:mainfrom

raccoongang:feature/fix-ui-error-on-empty-stream-responseraccoongang/openedx-ai-extensions:feature/fix-ui-error-on-empty-stream-responseCopy head branch name to clipboard