The board opens with focus in its search field, and its FocusTrap used
the shared stopPropagation helper, which ignores Escape while an input
is focused, so Escape never closed it (Chromium, Firefox, WebKit).
Always close on Escape here, still stopping the key from closing the
room or modal underneath. The GIF picker already uses the default.
Fixes#304
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017PCb59uY3UKqDqt7B6hzd5