feat: sticky header

feat: add bsky post from anyone on the atmosphere

remove non-existent email addresses, stale content, and broken references

update leaflet test to match behavior

Add styling for centered content blocks in markdown sections

fix long form publishing

standardize long-form publishing component

Co-authored-by: Cursor <cursoragent@cursor.com>

mentions, hashtags, and consistent facets 🌱

Personalize owner flower modal title text

align pixels for flower grid item

some basic keyboard accessibility tricks

add experimental disclaimer and link to layouts dev docs

Optimize OG card image and tighten social metadata copy

Add OG/Twitter social card metadata and image assets

Use markdown renderer in section block

Pre-launch fixes