Issues with `esm.sh` (and possibly other bundlers)

[DmitrySharabin]

Speaking of the color elements. There are two issues:

1. Minification breaks NudeElement's logic: Minification performed by bundlers (e.g., esm.sh) breaks getSuperMethod() #94

Adding the ?dev query parameter to an element's script URL helps. It disables minification and preserves function names. However,

2. CSS assets aren't served by esm.sh

The element styles are resolved at runtime relative to import.meta.url. esm.sh relocates JS into /es2022/, but doesn't serve CSS assets at those paths (or at the exports-mapped paths that we specified in package.json: ./*.css → ./src/*/*.css). All CSS requests return 404.

Our last commit in NudeElement that adds bundler compatibility to the styles plugin partially helps. getStyle() now handles bundler-friendly alternatives to relative URL resolution. However, CSS import attributes (the most reliable fix) lack Safari support, so a cross-browser solution is not there yet.

Unfortunately, even the upcoming change in the way we add shadow styles (static styles = new URL("./foo.css", import.meta.url)) won't work with esm.sh either. It's basically what it already does now.