The find_in_file keybind only opens the preview find bar when the event target sits inside the preview container, but that container was a plain div that never held focus, so the shortcut did nothing in read-only preview. Both preview containers are focusable now and take focus when a Markdown file opens in preview or is clicked, without stealing focus from a field the user is typing in. Claude-Session: https://claude.ai/code/session_017TK5JAYDfT3Fotc23UEg98