Addon A11y: Add typesVersions support for TypeScript definitions in a11y package

[valentinpalkovic]

Closes #

What I did

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

This section is mandatory for all contributions. If you believe no manual test is necessary, please state so explicitly. Thanks!

Documentation

• Add or update documentation reflecting your changes
• If you are deprecating/removing a feature, make sure to update
  MIGRATION.MD

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-storybook/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.

🦋 Canary release

This pull request has been released as version 0.0.0-pr-30005-sha-ba51dda0. Try it out in a new sandbox by running npx storybook@0.0.0-pr-30005-sha-ba51dda0 sandbox or in an existing project with npx storybook@0.0.0-pr-30005-sha-ba51dda0 upgrade.

More information

Published version	0.0.0-pr-30005-sha-ba51dda0
Triggered by	@valentinpalkovic
Repository	storybookjs/storybook
Branch	valentin/fix-type-issue-for-older-typescript-configurations
Commit	ba51dda0
Datetime	Tue Dec 10 14:54:19 UTC 2024 (1733842459)
Workflow run	12258717166

To request a new release of this pull request, mention the @storybookjs/core team.

core team members can create a new canary release here or locally with gh workflow run --repo storybookjs/storybook canary-release-pr.yml --field pr=30005

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Greptile Summary

Based on the provided information, I'll create a concise summary of the pull request changes:

Added TypeScript version support in the a11y addon package.json to ensure proper type definitions across different TypeScript versions.

• Added typesVersions field in code/addons/a11y/package.json to support TypeScript module resolution
• Configured type definitions for both main package (dist/index.d.ts) and preview module (dist/preview.d.ts)
• Maintained backward compatibility with existing exports configuration
• Aligned implementation with standard TypeScript module resolution patterns

The changes are focused on improving TypeScript support while maintaining the existing functionality of the a11y addon.

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