Description:
============
    Generates a new Stimulus controller at the passed path. If running under node,
    it'll also call the stimulus:manifest:update task to update the controllers/index.js.

Examples:
=========
    bin/rails generate stimulus chat

    creates: app/javascript/controllers/chat_controller.js


    bin/rails generate stimulus nested/chat

    creates: app/javascript/controllers/nested/chat_controller.js
