Improve visibility and wording around `close panel on toggle` setting (#63548)

# Objective

- Improve documentation for `close_panel_on_toggle` setting. 

## Solution

- Previous docs were a bit ambiguous and since refactoring the setting
name is not possible at the time, I improved the documentation.

## 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 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:

- Added the`close_panel_on_toggle` setting to the settings UI and
improved its documentation.
8ce383f221Matei Oprea committed on 9/1/2026, 3:53:33 PM· committed by GitHubparenta49de95
4 files changedLine totals unavailable