a higher score multiplier

This lets the user advertise a different port in the gopher urls,
for example listening locally on port 7070 but telling clients to
connect to the regular port 70.

kms

transmogrifier: upgrade: when upgrading OStatus users to AP, ensure we always use the fake collection

Just updating the user triggered post fetching too, now it
shouldn't. It only happened in the AP user fetching since that's
what's used to update users

notifications.

Unify Mastodon-compatible pagination logic.

Add default robots.txt that allows bots access to all paths.
Add mix task to generate robots.txt taht allows bots access to no paths.
Document custom emojis, MRF and static_dir
static_dir documentation includes docs for the robots.txt Mix task.

Add `is_seen` to MastoAPI notifications, extract rendering logic into separate NotificationView, add tests