Share pages with their own title, description, and image

Public links now show the page you shared, with dedicated social preview text and imagery.

What’s changed

• Blog posts use their cover or first article image. Founder profiles use their banner, then avatar. Products use their logo, then available screenshots.
• Public posts, podcasts, deals, testing rounds, invitations, tags, and other public pages include previews before the app loads.
• Tools and developer pages also include dedicated previews. Social networks may keep an older preview until they refresh a previously shared link.