Asset Pipeline & Webpacker Support about madmin

[excid3]

Skypack is super easy to use:

<script type="module">
  import confetti from 'https://cdn.skypack.dev/canvas-confetti';
  confetti();
</script>

It'd be great if we could use something like this without needing any tweaks to the asset pipeline or webpacker out of the box.

[excid3]

Played with this today. We can easily add SlimSelect and Flatpickr this way.

<%= stylesheet_link_tag "https://cdn.skypack.dev/flatpickr/dist/flatpickr.min.css", "data-turbo-track": "reload" %>
<%= stylesheet_link_tag "https://cdn.skypack.dev/slim-select/dist/slimselect.min.css", "data-turbo-track": "reload" %>
<%= stylesheet_link_tag "https://cdn.skypack.dev/trix/dist/trix.css", "data-turbo-track": "reload" %>

<%= javascript_include_tag "https://cdn.skypack.dev/trix/dist/trix.js", "data-turbo-track": "reload" %>

<script type="module">
  import { Application } from 'https://cdn.skypack.dev/stimulus'
  const application = Application.start()

  import stimulusFlatpickr from 'https://cdn.skypack.dev/stimulus-flatpickr'
  application.register("flatpickr", stimulusFlatpickr)

  import stimulusSlimselect from 'https://cdn.skypack.dev/stimulus-slimselect'
  application.register("slimselect", stimulusSlimselect)
</script>

This doesn't solve the problem of needing ActiveStorage, ActionText, and other JS from Rails. It does reduce dependencies on gems like slimselect-rails for the asset pipeline & directly installing the packages with webpacker. I think that's a win.

We may just need to add madmin.js that will include Turbo(links) and other Rails dependencies. That would be fairly simple.

[excid3]

Added Rails, ActiveStorage, and ActionText using Skypack matching the Ruby gem version number. This should make this work nicely.