fix user feedback controller test

config/initializers/inflections.rb

@@ -2,5 +2,4 @@ ActiveSupport::Inflector.inflections do |inflect|
   # inflect.plural /^(ox)$/i, '\1en'
   # inflect.singular /^(ox)en/i, '\1'
   # inflect.irregular 'person', 'people'
-  inflect.uncountable %w( user_feedback )
 end

config/routes.rb

@@ -90,7 +90,7 @@ Danbooru::Application.routes.draw do
   resources :tag_subscriptions
   resources :uploads
   resources :users
-  resources :user_feedback
+  resources :user_feedbacks
   resources :wiki_pages do
     member do
       put :revert