Fix error when using static class fields

[marvinhagemeister]

This code did throw an error due to the static class field:

class Foo {
  static state = 'class fields work';
}

This was already reported a while back in #708, but I didn't know that acorn needs a special plugin for static fields.

Fixes #708 .

[changeset-bot]

🦋 Changeset detected

Latest commit: 9fbafb1

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

This PR includes changesets to release 1 package

Name	Type
wmr	Patch

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[github-actions]

Size Change: +499 B (0%)

Total Size: 804 kB

Filename	Size	Change
packages/wmr/wmr.cjs	768 kB	+499 B (0%)

ℹ️ View Unchanged

Filename	Size
examples/demo/dist/about/index.html	713 B
examples/demo/dist/alias-outside/index.html	693 B
examples/demo/dist/assets/Calendar.********.css	702 B
examples/demo/dist/assets/style.********.css	624 B
examples/demo/dist/chunks/alias-outside.********.js	138 B
examples/demo/dist/chunks/class-fields.********.js	211 B
examples/demo/dist/chunks/compat.********.js	15.3 kB
examples/demo/dist/chunks/hoofd.module.********.js	1.48 kB
examples/demo/dist/chunks/index.********.js	267 B
examples/demo/dist/chunks/json.********.js	239 B
examples/demo/dist/chunks/meta-tags.********.js	300 B
examples/demo/dist/chunks/prerender.********.js	294 B
examples/demo/dist/class-fields/index.html	704 B
examples/demo/dist/compat/index.html	1.55 kB
examples/demo/dist/env/index.html	779 B
examples/demo/dist/error/index.html	708 B
examples/demo/dist/files/index.html	739 B
examples/demo/dist/index.********.js	7.74 kB
examples/demo/dist/index.html	770 B
examples/demo/dist/json/index.html	712 B
examples/demo/dist/lazy-and-late/index.html	714 B
examples/demo/dist/meta-tags/index.html	782 B

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[lgarron]

Thanks! 😍