feat(web): edit the last queued message with Option+Up (#12599)

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
8767a25c35Jake Leventhal committed on 9/21/2026, 8:23:10 PM· committed by GitHubparent4a4c22b
9 files changedLine totals unavailable