Resolves #528 - spread props on HeroDescription

[alexbuiltit]

Summary

Minor change that resolves #528 - allowing users to add custom class names to the HeroDescription component

List of notable changes:

• added {...rest} to HeroDescription to allow for custom class names to be used, this pattern is being used in HeroHeading, HeroImage etc.

What should reviewers focus on?

One thing to consider is that when a custom class name is being used it will remove the Hero-description styles, this is existing behaviour on the HeroHeading therefore isn't a regression.

Steps to test:

1. Run Storybook
2. Modify the default Hero.stories.tsx file and include a className on the HeroDescription component.
3. Open the Hero story on storybook, inspect element and see class added to the hero description.

Contributor checklist:

• All new and existing CI checks pass
• Tests prove that the feature works and covers both happy and unhappy paths
• Any drop in coverage, breaking changes or regressions have been documented above
• New visual snapshots have been generated / updated for any UI changes
• All developer debugging and non-functional logging has been removed
• Related issues have been referenced in the PR description

Reviewer checklist:

• Check that pull request and proposed changes adhere to our contribution guidelines and code of conduct
• Check that tests prove the feature works and covers both happy and unhappy paths
• Check that there aren't other open Pull Requests for the same update/change

[changeset-bot]

🦋 Changeset detected

Latest commit: 63fc524

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

This PR includes changesets to release 6 packages

Name	Type
@primer/react-brand	Patch
@primer/brand-primitives	Patch
@primer/brand-e2e	Patch
@primer/brand-fonts	Patch
@primer/brand-config	Patch
@primer/brand-storybook	Patch

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

[rezrah]

Thanks for making the update @alexbuiltit. The changes looks good. One minor suggestion for the change log, but otherwise happy to ✨

[alexbuiltit]

Hey @rezrah I've approved your suggestion, is there anything else I need to do or best to leave it with you/the team for now?

[rezrah]

Hey @rezrah I've approved your suggestion, is there anything else I need to do or best to leave it with you/the team for now?

👍 Thanks for resolving this issue @alexbuiltit, and for contributing to Primer. I'll get this merged for you now.