Align rendering of the feed across kinds
To make it a bit nicer between articles and /mf2/ entries, we should move to using a more consistent feel between kinds.
Firstly this requires making the presentation of the articles smaller, and a bit less bold in the feed, while taking care to preserve the Microformats2 content of the post.
Articles' titles should be a bit bolder than regular text, but not as
big as an
Following influence from https://mrkapowski.com/ we can decorate the
post with details of the kind of post it is. To make it more
extensible, we can create a new
kinds data setup, which can contain
information about each of the kinds, such as the icon.