gpui: Remove naga dependency (#55070)

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

Closes
https://github.com/zed-industries/zed/issues/54981#issuecomment-4333425722

Release Notes:

- N/A or Added/Fixed/Improved ...
e712f3c6dfMiguel Raz Guzmán Macedo committed on 4/28/2026, 10:00:07 AM· committed by GitHubparent10922d7
3 files changedLine totals unavailable