Enable link previews

[NfNitLoop]

When someone shares a link to a FeoBlog post onto other social networks, it would be nice if they would get a preview.

• title
• text
• any images if attached
• Fallback image(?)

Seems like stuff uses this Open Graph Protocol https://ogp.me/ to pull that info.

• Do I want to have a logo as a fallback? OGP seems to require an image. (Create a logo and/or icons #64)
• Should probably add a "Share" button to copy the correct link, since the /client/#/... links don't actually exist server-side.

[NfNitLoop]

🧠 ⛈️: Maybe I could fall back to Profile photos (#27) once they exist, and then fall back to identicons. But that would mean I'd need to generate them server-side. I wonder if the identicon library I'm currently is a standard that has been re-implemented in Rust. 🤔

[NfNitLoop]

Do I want to have a logo as a fallback? OGP seems to require an image.

Yes. I added server-side identicons as a fallback if the post doesn't include any images.

This will be out in 0.6.

[NfNitLoop]

Released in v0.6.0