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

Conflicts:
- `app/controllers/about_controller.rb`:
  Minor conflict caused by glitch-soc's theming system.
  Ported upstream changes.

spec/controllers/auth/registrations_controller_spec.rb

@@ -82,6 +82,10 @@ RSpec.describe Auth::RegistrationsController, type: :controller do
   describe 'POST #create' do
     let(:accept_language) { Rails.application.config.i18n.available_locales.sample.to_s }
 
+    before do
+      session[:registration_form_time] = 5.seconds.ago
+    end
+
     around do |example|
       current_locale = I18n.locale
       example.run