debugger: Make debug panes zoomable (#29365)

- [x] Buttons
- [x] Make it keyboard-driven

Co-authored-by: Anthony <anthony@zed.dev>

Release Notes:

- N/A

---------

Co-authored-by: Anthony Eid <hello@anthonyeid.me>
65401d6d7bCole Miller committed on 4/25/2025, 3:56:16 PM· committed by GitHubparenta5405fc
2 files changedLine totals unavailable