feat: add precompress option to adapter-static

[sastan]

This PR adds the precompress option from adapter-node to adapter-static.

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[changeset-bot]

🦋 Changeset detected

Latest commit: dc461c3

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

This PR includes changesets to release 1 package

Name	Type
@sveltejs/adapter-static	Minor

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[Rich-Harris]

Thank you — I flipped the default to false and updated the readme

[sastan]

Thank you

Thank you for this awesome project.

I flipped the default to false and updated the readme

Sorry for that. I'll keep it in mind for the next time.

Have a great holiday...

[frederikhors]

@sastan is there any docs for this feature? Can you add any lines of documentation?

[Rich-Harris]

@frederikhors https://github.com/sveltejs/kit/tree/master/packages/adapter-static#precompress