chore: rubocop

chore: fix api test conventions

chore: rubocop -A spec/

chore: more rubocop -A

fix failing test

rubocop fixes

removes helper methods that are in my opinion dead code

more rubocop fixes

rubocop -a --auto-gen-config

app/controllers/styles_controller.rb

@@ -9,7 +9,7 @@ class StylesController < ApplicationController
   def foodcoop
     css = FoodsoftConfig[:custom_css]
     if css.blank?
-      render body: nil, content_type: 'text/css', status: 404
+      render body: nil, content_type: 'text/css', status: :not_found
     else
       expires_in 1.week, public: true if params[:md5].present?
       render body: css, content_type: 'text/css'