* Breaking: remove compatiblity with page.url field (ref #2182)
* Breaking: change type of Instance to `Application` (ref #2200)
Co-authored-by: Dessalines <dessalines@users.noreply.github.com>
* implement language tags for site/community in db and api
* add api checks for valid languages
* during db migration, update existing users, sites, communities to have all languages enabled
* init new users/communities with site languages (not all languages)
* federate site/community languages
* fix tests
* when updating site languages, limit community languages to this subset
also, when making a new post and subset of user lang, community lang
contains only one item, use that as post lang
* add tests for actor_language db functions
* include language list in siteview/communityview
* Fix some of the review comments
* Some more review changes
* Add todo about boxed query
* Add default_post_language to GetCommunityResponse
* Implement instance actor
* wip: make site bans federate
* finish implementation and unit tests for federated bans
* start adding api tests
* fix api test
* remve site from GetCommunityResponse
* only federate site bans originating from user's home instance
* dont expose site.private_key in api