Fix issue with trending order when user has chosen languages (#33557)

app/models/trends/query.rb

@@ -94,11 +94,14 @@ class Trends::Query
     to_arel.to_a
   end
 
-  def language_order_for(trend_class)
+  def language_order_clause
+    Arel::Nodes::Case.new.when(language_is_preferred).then(1).else(0).desc
+  end
+
+  def language_is_preferred
     trend_class
-      .reorder(nil)
-      .in_order_of(:language, [preferred_languages], filter: false)
-      .order(score: :desc)
+      .arel_table[:language]
+      .in(preferred_languages)
   end
 
   def preferred_languages