I ran into this while conducting some tests. If you search for a channel
name in the Collab Panel and then try to “Add a Contact,” it seeds the
query with your search term from the current contents of that channel
search editor.

Opted to just drop that method altogether as it’s not being used
anywhere else.

## Self-Review Checklist:

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

---

Release Notes:

- Fixed the contact finder inheriting the channel search query in the
Collab Panel