Introduce injectStylesAs config for html plugin

[edoardocavazza]

This PR introduces a injectStylesAs configuration to set the inject behavior for CSS imports in JavaScript modules.

It should fix #172

[changeset-bot]

🦋 Changeset detected

Latest commit: b190cf1

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@chialab/esbuild-plugin-html	Patch

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[codecov]

Codecov Report

Attention: Patch coverage is 90.19608% with 5 lines in your changes are missing coverage. Please review.

Project coverage is 75.78%. Comparing base (623f59f) to head (b190cf1).

Files	Patch %	Lines
packages/esbuild-plugin-html/lib/collectScripts.js	80.00%	0 Missing and 4 partials ⚠️
packages/esbuild-plugin-html/lib/index.js	96.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #176      +/-   ##
==========================================
+ Coverage   75.70%   75.78%   +0.07%     
==========================================
  Files          28       28              
  Lines        5034     5067      +33     
  Branches      776      780       +4     
==========================================
+ Hits         3811     3840      +29     
  Misses        467      467              
- Partials      756      760       +4     

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[benjamingwynn]

Thank you for your hard work @edoardocavazza !

This is required for CSS in Svelte files loaded via esbuild-svelte to not cause a flash of unstyled content.

Until this PR is merged I've isolated eslint-plugin-html with this patch into a drop-in replacement.