* Replace the input! macro with an Input builder
* Use a BTreeMap instead of an HashMap
Followinf @fdb-hiroshima's advice
* Rename Input::to_html to Input::html
To make clippy happy
* Wrap error messages in red paragraphs
Add support for remote interaction ([this thing](https://eldritch.cafe/users/Barmaid/remote_follow) in mastodon)
- [x] create the endpoint dispatching remote interactions to local pages
- [x] add this endpoint to web-finger
- [x] propose remote interaction when following and not connected
- [x] propose remote interaction when liking/sharing and not connected
- [x] propose remote interaction when commenting and not connected
- [x] fetch posts/comments we don't know but remote interaction was requested for ?
