add webhook event preferences

config/routes.rb

@@ -59,6 +59,7 @@ Rails.application.routes.draw do
   resources :testing_api_settings, only: %i[index]
   resources :submitters_autocomplete, only: %i[index]
   resources :template_folders_autocomplete, only: %i[index]
+  resources :webhook_preferences, only: %i[create]
   resource :templates_upload, only: %i[create]
   authenticated do
     resource :templates_upload, only: %i[show], path: 'new'