- Fix article header tag borders: replace broken border-current/20
(Tailwind can't apply opacity to currentColor) with per-tag border
colour classes via new get_tag_border_css filter
- Add calendar icon before article date in article header
- Add clock icon before read time in article header and home featured
- Match article card footer to wireframe (remove extra min-read span)
- Add rounded-md to code block matching wireframe
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>