[vite] Importing extendTheme() in vite app crashes

[oliviertassinari]

Steps to reproduce

Add

import { extendTheme } from '@pigment-css/vite-plugin';

extendTheme({});

to any of your pages

Current behavior

Expected behavior

No error

Context

I would like to use the theme value directly in JavaScript, in my case for https://github.com/oliviertassinari/react-conf-2024-pigment-css/blob/b55ff16e86831ac790972659546bc01484861c19/src/App.tsx#L30.

Your environment

npx @mui/envinfo

  Don't forget to mention which browser you used.
  Output from `npx @mui/envinfo` goes here.

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