prompt updates (#412)

<!-- This is an auto-generated comment: release notes by OSS CodeRabbit
-->
### Summary by CodeRabbit

```
### Refactor:
- Removed a section of code related to notes in `src/review.ts`.
- Added a new section with tips in `src/review.ts`.
- Modified the `sanitizeComment` function to handle different types of code blocks.

---

> 🎉 Code's been refactored, it's no jest,
> 
> With tips and tricks, it's now the best.
> 
> Sanitize comments, keep them clean,
> 
> In our codebase, no mess to be seen! 🧹🌟
```
<!-- end of auto-generated comment: release notes by OSS CodeRabbit -->

Author: harjotgill