Allow using events used by rails-ujs

[CPatchane]

Based on the code source https://github.com/rails/rails/blob/main/actionview/app/assets/javascripts/rails-ujs.js

This is not compatible with jquery-ujs since the custom event (like ajax:success) listeners signature are changing from jquery-ujs to rails-ujs:

• jQueryUJS, by using .trigger() from jQuery, makes the listener signature looking like onSuccess(event: Event, data: any) => { console.log(data) }
• in contrast, RailsUJS missing jQuery, is now using the native Event API with .dispatchEvent() and a CustomEvent making the listener looking like onSuccess(event: CustomEvent<any>) => { console.log(event.detail) }

jquery-ujs source
rails-ujs source