[Bug] Message renderer truncates long outputs without full scrollable content

Question

**Bug Description**
I am using the new renderer for this chat and the output for this message was long and the renderer didn't show the whole output from claude. It mentioned that there were ~8 points but it didn't show me the first few points. I had to /export the chat to a txt file to read the full output.

**Environment Info**
- Platform: darwin
- Terminal: iTerm.app
- Version: 2.1.96
- Feedback ID: 261ad96f-b6f6-4434-b9a8-008ae7f112fa

**Errors**
```json
[]
```

Attaching how it looks on my