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

Conflicts:
- app/views/admin/settings/edit.html.haml:
  Conflict due to how the theming settings change.

spec/presenters/instance_presenter_spec.rb

@@ -31,34 +31,6 @@ describe InstancePresenter do
     end
   end
 
-  context do
-    around do |example|
-      open_registrations = Setting.open_registrations
-      example.run
-      Setting.open_registrations = open_registrations
-    end
-
-    it "delegates open_registrations to Setting" do
-      Setting.open_registrations = false
-
-      expect(instance_presenter.open_registrations).to eq false
-    end
-  end
-
-  context do
-    around do |example|
-      closed_registrations_message = Setting.closed_registrations_message
-      example.run
-      Setting.closed_registrations_message = closed_registrations_message
-    end
-
-    it "delegates closed_registrations_message to Setting" do
-      Setting.closed_registrations_message = "Closed message"
-
-      expect(instance_presenter.closed_registrations_message).to eq "Closed message"
-    end
-  end
-
   context do
     around do |example|
       site_contact_email = Setting.site_contact_email