Upgrade addon to be compatible with Storybook v10

[MaxLikesCode]

Summary

This PR upgrades the addon to be compatible with Storybook v10, migrating from Storybook v9. The changes include dependency updates and a migration to pure ESM format.

Changes

• Storybook version upgrade: Updated from ^9.0.0 to ^10.0.0 in both devDependencies and peerDependencies
• ESM migration: Converted the package from dual ESM/CJS to pure ESM format
  • Removed require fields from package.json exports
  • Added "type": "module" to package.json
  • Updated tsup configuration to build only ESM format (format: ["esm"])
  • Updated import statements to use .js extensions (required for ESM)
• Dependency updates: Updated lockfile with Storybook v10 and related dependencies

Breaking Changes

⚠️ This is a breaking change. The package now:

• Only supports ESM imports (no CommonJS require)
• Requires Storybook v10+

Related

• Upgrades from Storybook v9 support added in feat: Port to Storybook 9 #31

[krzysiek1507]

Hey @Sidnioulz! Would you mind reviewing it?

[Sidnioulz]

Thanks for the contribution @MaxLikesCode!

There are changes missing from the addon migration guide, in particular in tsup and tsconfig, and in the src/index. There are also changes to how addons are locally loaded which may need to be taken into account.

Could you please go through the guide step by step and ensure these are updated?

[Sidnioulz]

See suggestions

[krzysiek1507]

Seems like auto-release failed :(

[vlysytsia]

@ndelangen @Sidnioulz can you please check the release for this PR as addon-styling-webpack still doesn't work with Storybook v10

[Sidnioulz]

@ndelangen @Sidnioulz can you please check the release for this PR as addon-styling-webpack still doesn't work with Storybook v10

I can see the release was performed on November 13. Could you please open a new issue with the errors you're finding and more information on your environment (framework, Node version, OS, features used, reproduction repository)? Thanks

[vlysytsia]

@ndelangen @Sidnioulz can you please check the release for this PR as addon-styling-webpack still doesn't work with Storybook v10

I can see the release was performed on November 13. Could you please open a new issue with the errors you're finding and more information on your environment (framework, Node version, OS, features used, reproduction repository)? Thanks

Thanks for reply @Sidnioulz, I added the issue #37