Simplify exports

[lukasoppermann]

Summary

Add simplified exports (→ imports) for css.

E.g.

@import '@primer/primitives/dist/css/functional/themes/light.css';
// can now be replaces by
@import '@primer/primitives/themes/light.css';

Testing:

• [Don't merge] test primitives export css#2873
• [Don't merge] Test primitives export update react#6469
• https://github.com/github/github/pull/395002

[changeset-bot]

🦋 Changeset detected

Latest commit: 1c7b569

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

This PR includes changesets to release 1 package

Name	Type
@primer/primitives	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[joshblack]

Just left a comment! The only other thing that came to mind is that since "exports" is net new it might interfere with projects that are still including that dist path (since "exports" makes it strict what the package exports). Would it be worth adding support in for dist in the interim or are you doing this behind a major / making the changes downstream? Or is this not a problem, potentially?

[lukasoppermann]

Just left a comment! The only other thing that came to mind is that since "exports" is net new it might interfere with projects that are still including that dist path (since "exports" makes it strict what the package exports). Would it be worth adding support in for dist in the interim or are you doing this behind a major / making the changes downstream? Or is this not a problem, potentially?

I came to the same conclusion and added dist and src to the exports

[Copilot]

Pull Request Overview

This PR adds simplified export mappings to the package.json to enable shorter import paths for CSS files, eliminating the need to specify the full dist/css/functional/ path structure.

• Adds exports field to package.json with path mappings for CSS files
• Updates documentation to demonstrate the new shorter import syntax
• Includes changeset for patch version bump

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
package.json	Adds exports configuration with simplified path mappings for CSS imports
README.md	Updates documentation to show new shorter import paths instead of full dist paths
.changeset/orange-hounds-unite.md	Adds changeset entry for the simplified exports feature

[joshblack]

LGTM! Let me know if I can help try it out at all in PRC 👀

[lukasoppermann]

LGTM! Let me know if I can help try it out at all in PRC 👀

Yes, please @joshblack → primer/react#6469
No idea why it fails, I can get this file locally in my test.