docs: Fix broken link in `agent-panel.md` (#37113)

This fixes a small typo I stumbled upon, which caused a 404 within the
docs.

Release Notes:

- N/A
f2e62c98d1Finn Evers committed on 8/28/2025, 7:48:35 PM· committed by GitHubparent8697b91
1 file changedLine totals unavailable