Merge branch 'master' into glitch-soc/merge-upstream

Conflicts:
- app/models/status.rb
- db/schema.rb

Both conflicts are caused by us having extra database columns.

app/serializers/rest/status_serializer.rb

@@ -23,6 +23,7 @@ class REST::StatusSerializer < ActiveModel::Serializer
   has_many :emojis, serializer: REST::CustomEmojiSerializer
 
   has_one :preview_card, key: :card, serializer: REST::PreviewCardSerializer
+  has_one :poll, serializer: REST::PollSerializer
 
   def id
     object.id.to_s