Merge commit '121443c0fca383268b8022c048dd137994785aff' into glitch-soc/main

Conflicts:
- `.rubocop_todo.yml`:
  Upstream regenerated this file, glitch-soc had a specific ignore.

app/serializers/initial_state_serializer.rb

@@ -46,6 +46,7 @@ class InitialStateSerializer < ActiveModel::Serializer
       single_user_mode: Rails.configuration.x.single_user_mode,
       trends_as_landing_page: Setting.trends_as_landing_page,
       status_page_url: Setting.status_page_url,
+      sso_redirect: sso_redirect,
     }
 
     if object.current_account
@@ -125,4 +126,8 @@ class InitialStateSerializer < ActiveModel::Serializer
   def instance_presenter
     @instance_presenter ||= InstancePresenter.new
   end
+
+  def sso_redirect
+    "/auth/auth/#{Devise.omniauth_providers[0]}" if ENV['OMNIAUTH_ONLY'] == 'true' && Devise.omniauth_providers.length == 1
+  end
 end

app/serializers/rest/preview_card_serializer.rb

@@ -6,7 +6,7 @@ class REST::PreviewCardSerializer < ActiveModel::Serializer
   attributes :url, :title, :description, :language, :type,
              :author_name, :author_url, :provider_name,
              :provider_url, :html, :width, :height,
-             :image, :embed_url, :blurhash, :published_at
+             :image, :image_description, :embed_url, :blurhash, :published_at
 
   def image
     object.image? ? full_asset_url(object.image.url(:original)) : nil