Checklist Markdown Broken in Note List/Sidebar

If a checklist is part of the top of a note, it looks very odd in the preview/sidebar/note list. It seems to be skipping the first bracket, then ignoring the closing bracket on the text, then skipping the URL entirely. Not sure what's up or if any one part of that is intended.

Can be reproduced consistently, here's example text provided by a customer:

```
# Broken snippet test

- [ ] I am a [broken snippet](https://simplenote.com)
```

Example:

### Expected
I would expect it to either ignore the markdown or show all of it. Ideally ignore the markdown.

### Where did you see the bug

Customer details:
- I use a Macbook Air M1 (2020)
- MacOS 12.1
- Simplenote 2.21.0

My details when reproducing:

- MacBook Pro
- Mac OS 11.4 (20F71)
- Simplenote 2.21.0

This does not happen in the native Mac app.