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

Conflicts:
- `package.json`:
  Not really a conflict, just some glitch-soc-specific dependency
  too close to an upstream-updated one.

app/serializers/rest/relationship_serializer.rb

@@ -52,6 +52,6 @@ class REST::RelationshipSerializer < ActiveModel::Serializer
   end
 
   def note
-    (instance_options[:relationships].account_note[object.id] || {})[:comment]
+    (instance_options[:relationships].account_note[object.id] || {})[:comment] || ''
   end
 end