Docs: Update theming example

[booc0mtaco]

Update the import statement example to match conventions in storybook 8.2.x and newer

Repository / Pull Request in question: chanzuckerberg/edu-design-system@5299632

Closes #

What I did

After updating to the latest storybook release (8.2.x), I started getting errors when starting local development, and in CI

Snippet:

<i> [webpack-dev-middleware] wait until bundle finished: /__webpack_hmr
ERROR in ./.storybook/Theme.js 1:0-51
Module not found: Error: Can't resolve '@storybook/theming/create' in '/Users/xxx/Development/xxx/.storybook'
 @ ./.storybook/preview.tsx 14:0-28 56:11-16
 @ ./storybook-config-entry.js 9:1567-1647 30:0-33:2 30:1540-33:1

Also, there is a typescript error in my theme file:

Default export of the module has or is using private name 'ThemeVars'. ts(4082)
(property) default: ThemeVars

This theme file follows the directions in the documentation mentioned here. However, after investigating, I found a thread mentioning an alternative import statement that I tried, which worked. Here, I update the code example to use that import path. In code, removing /create from the path fixes the TypeScript Error, and allows the build to pass.

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

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Documentation

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

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  • bug: Internal changes that fixes incorrect behavior.
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[greptile-apps]

PR Summary

• Updated import path in /docs/_snippets/storybook-theme-example-variables.md to @storybook/theming
• Resolved build errors by removing /create from the import path
• Fixed TypeScript error related to ThemeVars

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[booc0mtaco]

Related: https://github.com/storybookjs/storybook/blob/next/MIGRATION.md#failed-to-resolve-import-storybookx-error

[jonniebigodes]

@booc0mtaco, thank you for putting together this pull request and helping us improve the documentation by catching this small issue with our examples. We appreciate it 🙏 !

I've checked, and everything is good on my end.

I'm going to merge this once the checklist clears.

I hope you have a great day.

Stay safe

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