[Bug]: Global decorators external ressources ignored by storybook-build in version 8

[Treycos]

Describe the bug

Global decorators imports containing CSS are not included in stories of the final storybook build

To Reproduce

Create a React project with Vite ans install Storybook 8

Export a decorator from preview.tsx

const preview: Preview = {
  decorators: [
    (Story) => (
      <Provider>
        <Story />
      </Provider>
    ),
  ],
  parameters,
};

Execute storybook build

Serve the storybook-static folder

System

Storybook Environment Info:

  System:
    OS: Windows 11 10.0.22631
    CPU: (16) x64 11th Gen Intel(R) Core(TM) i7-11800H @ 2.30GHz
  Binaries:
    Node: 18.12.1 - C:\Program Files\nodejs\node.EXE
    Yarn: 1.22.19 - ~\AppData\Roaming\npm\yarn.CMD
    npm: 8.19.2 - C:\Program Files\nodejs\npm.CMD
    pnpm: 8.15.4 - ~\AppData\Local\pnpm\pnpm.CMD <----- active
  Browsers:
    Edge: Chromium (123.0.2420.97)
  npmPackages:
    @storybook/addon-a11y: ^8.0.8 => 8.0.8 
    @storybook/addon-actions: ^8.0.8 => 8.0.8 
    @storybook/addon-essentials: ^8.0.8 => 8.0.8 
    @storybook/addon-interactions: ^8.0.8 => 8.0.8 
    @storybook/addon-links: ^8.0.8 => 8.0.8 
    @storybook/addon-themes: ^8.0.8 => 8.0.8 
    @storybook/blocks: ^8.0.8 => 8.0.8 
    @storybook/manager-api: ^8.0.8 => 8.0.8
    @storybook/react: ^8.0.8 => 8.0.8
    @storybook/react-vite: ^8.0.8 => 8.0.8
    @storybook/test: ^8.0.8 => 8.0.8
    @storybook/test-runner: ^0.17.0 => 0.17.0
    @storybook/theming: ^8.0.8 => 8.0.8
    eslint-plugin-storybook: ^0.8.0 => 0.8.0
    storybook: ^8.0.8 => 8.0.8

Additional context

No response