fix(Blankslate): update styles to center description text

[joshblack]

The text in Blankslate should be text-align: center instead of justified left 🔍

Changelog

New

Changed

• Set text-align: center on the Blankslate container

Removed

Rollout strategy

• Patch release

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🦋 Changeset detected

Latest commit: e325c08

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

This PR includes changesets to release 1 package

Name	Type
@primer/react	Patch

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[github-actions]

👋 Hi, this pull request contains changes to the source code that github/github depends on. If you are GitHub staff, we recommend testing these changes with github/github using the integration workflow. Thanks!

[jonrohan]

:chef-kiss:

[joshblack]

@jonrohan I noticed that in PVC this style is set at the container level and I wanted to ask if we should do it similarly or, since this component accepts children, if we should scope it to the description/heading?

The only concern I would have is that anything rendered as children to Blankslate would also have text alignment this way (which could be intended but I wanted to double check).

[github-actions]

size-limit report 📦

Path	Size
packages/react/dist/browser.esm.js	98.48 KB (0%)
packages/react/dist/browser.umd.js	98.91 KB (0%)

[jonrohan]

since this component accepts children, if we should scope it to the description/heading?

Good point, I would probably scope to just the .Description class. Since scoping on the container will require children to have text-align: left to reset the style