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 ##42292 The text inserted in the search ('\$SEARCH') and replace ('$$OTHER') inputs of the top-panel is a little anti-aesthetic, but that seems out of scope for this issue. Release Notes: - '$' in the second clause of vim-style '%s/find/replace/g' actions is correctly escaped. Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>