[Feature Request] Add keyboard navigation for prompt/response history in VS Code plugin

Question

**Bug Description**
please allow us to navigate up and down to our questions/prompts easier. Particularly in the non-terminal plugin in vs code, its a pain to scroll up and down to find our question between the potentially  │
│   long amount of text output from the model.

**Environment Info**
- Platform: darwin
- Terminal: vscode
- Version: 2.0.69
- Feedback ID: 21ded982-296c-4bc8-a536-72c1a4b2c8cf

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