Merge commit '1483a3ddfe74e4fb81d87447a1781943eab86c60' into glitch-soc/merge-upstream

Conflicts:
- `config/initializers/simple_form.rb`:
  Upstream added a new simple_form component, where we had an extra one.
  Kept both components.

app/models/list.rb

@@ -10,6 +10,7 @@
 #  created_at     :datetime         not null
 #  updated_at     :datetime         not null
 #  replies_policy :integer          default("list"), not null
+#  exclusive      :boolean          default(FALSE)
 #
 
 class List < ApplicationRecord