Markdown.to_lines now detects GFM tables (header + delimiter row) and
renders them as box-drawn, alignment-aware tables that shrink to fit the
pane width, instead of mangling the rows into a single paragraph.
ScrollView now handles mouse-wheel events, and Window routes wheel
events to the widget under the cursor, so a detail/content pane scrolls
even when keyboard focus is on an adjacent list.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
