Rubocop fixes

Author: rsmithlal

app/controllers/better_together/platforms_controller.rb

@@ -69,10 +69,9 @@ def platform_params
       permitted_attributes = %i[
         slug url time_zone privacy
       ]
-      # rubocop:todo Metrics/CollectionLiteralLength
       css_block_attrs = [{ css_block_attributes: %i[id type identifier] +
-                        BetterTogether::Content::Css.extra_permitted_attributes +
-                        BetterTogether::Content::Css.localized_attribute_list }]
+        BetterTogether::Content::Css.extra_permitted_attributes +
+        BetterTogether::Content::Css.localized_attribute_list }]
 
       params.require(:platform).permit(
         permitted_attributes,