Add data-umami-event attributes to all meaningful links that were
missing tracking:
- Footer: try-it, GitHub, docs, API, blog, newsletter, community,
about, contact, and all social icons (Framagit, GitHub, feedback,
Mastodon, email)
- CTA join section: primary signup button
- Usage footer: survey, Matrix, IRC, and about links (with per-page
content base name for granular tracking)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Replaces the hardcoded "2019-2025" with "2019-{{ now.Year }}" so the
footer copyright year stays current automatically.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
