Docs: Fix Typeset Doc block fontSizes type

[noranda]

What I did

Fixes the type for fontSizes in the Typeset block to match the docs.

Currently, Typescript will throw an error if you try to pass in a number[] to this prop. You either need to typecast a number[] to a string[], or pass in a string array with the px in order for it to work.

Checklist for Contributors

Testing

The changes in this PR are covered in the following automated tests:

• stories
• unit tests
• integration tests
• end-to-end tests

Manual testing

1. Run any app or sandbox that uses Storybook, , e.g. yarn task --task sandbox --start-from auto --template react-vite/default-ts.
2. Open any editor that has Typescript support.
3. Create a component that uses the Typeset component and pass in an array of numbers to fontSizes.
4. Should not see any Typescript errors.

Documentation

No updates to documentation needed.

Checklist for Maintainers

• When this PR is ready for testing, make sure to add ci:normal, ci:merged or ci:daily GH label to it to run a specific set of sandboxes. The particular set of sandboxes can be found in code/lib/cli/src/sandbox-templates.ts

• Make sure this PR contains one of the labels below:

  Available labels

  • bug: Internal changes that fixes incorrect behavior.
  • maintenance: User-facing maintenance tasks.
  • dependencies: Upgrading (sometimes downgrading) dependencies.
  • build: Internal-facing build tooling & test updates. Will not show up in release changelog.
  • cleanup: Minor cleanup style change. Will not show up in release changelog.
  • documentation: Documentation only changes. Will not show up in release changelog.
  • feature request: Introducing a new feature.
  • BREAKING CHANGE: Changes that break compatibility in some way with current major version.
  • other: Changes that don't fit in the above categories.

[jonniebigodes]

@noranda appreciate you taking the time to put together this pull request. We appreciate it 🙏 ! @kylegach when you have a moment can you check this and follow up with @JReinhold and the contributor for documentation. Thanks in advance.

[JReinhold]

The proper type would actually be (string | number)[] because that's the type of the underlying data model. It would be great if you could update the docs to reflect this as well.

Suggested change

	fontSizes: number[];
	fontSizes: (string | number)[];

[noranda]

@JReinhold Thanks! All set!

[JReinhold]

Looks good. We've just entered feature freeze for 8.1, so we wont be merging this until next week.

[nx-cloud]

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