keymap editor: Refine how we display matching keystrokes (#35796)

| Before | After |
|--------|--------|
| <img width="1092" height="528" alt="CleanShot 2025-08-07 at 10  54
42@2x"
src="https://github.com/user-attachments/assets/8b0a3b50-e1d1-4763-824c-2b419df430fc"
/> | <img width="1096" height="580" alt="CleanShot 2025-08-07 at 11  29
47@2x"
src="https://github.com/user-attachments/assets/bd484655-90a6-46fe-91ef-c9c8d2ab93bc"
/> |

Release Notes:

- N/A
262365ca24Danilo Leal committed on 8/7/2025, 2:50:11 PM· committed by GitHubparent90fa06d
3 files changedLine totals unavailable