I recently encountered some issue on my mac and I tried to uninstall Zed
completely. However the current guide to remove user data does not cover
some configs that Zed uses. There are also some directories that should
be removed according to the doc but never exist. So I have this pull
request to make the user data directories more accurate, according to my
own experience.

Self-Review Checklist:

- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content is consistent with the [UI/UX
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable

Release Notes:

- N/A: doc update

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Co-authored-by: Christopher Biscardi <chris@christopherbiscardi.com>