Add support for language preferences for trending statuses and links (#18288)

app/controllers/admin/trends/links_controller.rb

@@ -4,6 +4,7 @@ class Admin::Trends::LinksController < Admin::BaseController
   def index
     authorize :preview_card, :review?
 
+    @locales       = PreviewCardTrend.pluck('distinct language')
     @preview_cards = filtered_preview_cards.page(params[:page])
     @form          = Trends::PreviewCardBatch.new
   end

app/controllers/admin/trends/statuses_controller.rb

@@ -4,6 +4,7 @@ class Admin::Trends::StatusesController < Admin::BaseController
   def index
     authorize :status, :review?
 
+    @locales  = StatusTrend.pluck('distinct language')
     @statuses = filtered_statuses.page(params[:page])
     @form     = Trends::StatusBatch.new
   end