fix: fixed dynamic import lose vue style after build cjs (fix #4277)

[Veiintc]

Description

fixed vitejs/vite-plugin-vue#27
when dynamic import vue file
before vite 2.1.5 build format cjs ,vite create style label to import css
but after vite 2.1.5 build format cjs ,vite create css file but nowhere to import it

use https://github.com/Veiintc/vite-cjs-csslose Recurrence problem

Additional context

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What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

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[bluwy]

Sorry for the lack of response here. We're slowly moving away of CJS now, and I don't think this is something we want to support now. I'd suggest moving to ESM if possible. Closing for now, but thanks for kicking off this PR!