Merge branch 'following-relationships-optimizations' into 'develop'

lib/pleroma/ecto_enums.ex

lib/pleroma/following_relationship.ex

lib/pleroma/user.ex

lib/pleroma/user/query.ex

lib/pleroma/user_relationship.ex

lib/pleroma/web/activity_pub/transmogrifier.ex

lib/pleroma/web/common_api/common_api.ex

lib/pleroma/web/mastodon_api/views/account_view.ex

...24805_change_following_relationships_state_to_integer.exs

...130139_add_following_relationships_following_id_index.exs

test/following_relationship_test.exs

test/tasks/user_test.exs

test/user_test.exs

test/web/activity_pub/transmogrifier_test.exs

test/web/common_api/common_api_test.exs

...stodon_api/controllers/follow_request_controller_test.exs

test/web/streamer/streamer_test.exs