feature/issue 923 native import attributes for CSS and JSON (#1215)

* intial draft of import attributes support for CSS and JSON

* all test cases passing

* need patch package

* wcc patches for import attributes and CSSStylesheet shim

* bump min NodeJS version for exp specs

* temp disable ESLint

* develop based import assertion specs

* serve based import attributes specs

* add preIntercept resource plugin lifecycle and refactor PostCSS to use it

* all test cases passing for import attributes support

* refactor built in CSS and JSON intercepting

* demo code

* raw plugin docs and package.json updates

* update latest documentation for custom loaders support in NodeJS

* update custom import docs

* upgrade wcc v0.13.0

* only need Node 18 for github actions

* css imports and raw plugin interop with test cases

* lit renderer import attribute test cases and documentation

* refactor matchers support for raw plugin instead of patching and add test cases

* disable describe.only

* update usage for custom resource plugins to showcase usage of import attributes

* document preIntercept lifecycle and convert Babel to use it

* restore ESLint

* enable debug logging for failing specs

* refactor theme pack specs

* fix linting

* remove CSS and JSON packages from being publishable

* clean up console logs and comments

* rename exp test cases to loadersnaming prefix

* fix command in github actions

* remove plugin-import-css callout from plugin-postcss README

* remove demo code from website

* refine PostCSS plugin intercepting

packages/plugin-renderer-lit/README.md

@@ -38,7 +38,7 @@ yarn add @greenwood/plugin-renderer-lit --dev
 1. Please familiarize yourself with some of the [caveats](https://lit.dev/docs/ssr/overview/#library-status) called out in the Lit docs, like:
     - Lit SSR [**only** renders into declarative shadow roots](https://github.com/lit/lit/issues/3080#issuecomment-1165158794), so you will have to keep browser support and polyfill usage in mind.
     - At this time, `LitElement` does not support `async` work.  You can follow along with this issue [in the Lit repo](https://github.com/lit/lit/issues/2469).
-1. Lit only supports templates on the server side for HTML only generated content, thus Greenwood's `getBody` API must be used.  We would love for [server only components](https://github.com/lit/lit/issues/2469#issuecomment-1759583861) to be a thing though!
+1. Lit only supports templates on the server side for HTML generated content, thus Greenwood's `getBody` API must be used.  We would love for [server only components](https://github.com/lit/lit/issues/2469#issuecomment-1759583861) to be a thing though!
 1. Lit does not support [`CSSStyleSheet` (aka CSS Modules) in their SSR DOM shim](https://github.com/lit/lit/issues/2631#issuecomment-1065400805).
 1. Full hydration support is not available yet.  See [this Greenwood issue](https://github.com/ProjectEvergreen/greenwood/issues/880) to follow along with when it will land.