docs: center embeds on desktop, fix stat card heights, add contact email (#1037)
- center trending tracks and search sections on desktop (margin: 0 auto)
- fix stats grid: use repeat(4, 1fr) so tracks card isn't taller than others
- add contact email (plyrdotfm@proton.me) at bottom of landing page
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
authored by
zzstoatzz.io