Shared map links now show a preview card

Paste a published map link into Slack, iMessage, WhatsApp, Discord or a tweet and it now unfurls into a card showing that map, rather than sitting there as a bare address.

The card is drawn from the map itself, so it shows your map rather than a generic mindmap.io image. It is also small enough now that the apps which used to give up on it render it.

Publish a map and paste the link somewhere.