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

Conflicts:
- `app/controllers/admin/dashboard_controller.rb`:
  Upstream completely redesigned the admin dashboard.
  glitch-soc tracked extra features, but that list is
  gone.
  Followed upstram.
- `app/views/admin/dashboard/index.html.haml`
  Upstream completely redesigned the admin dashboard.
  glitch-soc tracked extra features, but that list is
  gone.
  Followed upstram.

app/helpers/application_helper.rb

@@ -137,6 +137,10 @@ module ApplicationHelper
     end
   end
 
+  def react_admin_component(name, props = {})
+    content_tag(:div, nil, data: { 'admin-component': name.to_s.camelcase, props: Oj.dump({ locale: I18n.locale }.merge(props)) })
+  end
+
   def body_classes
     output = (@body_classes || '').split(' ')
     output << "flavour-#{current_flavour.parameterize}"