fix(compiler-sfc): user-defined options.data of scss should be respected

[satotake]

vite 1.0.0-beta.9+ accepts cssPreprocessOptions but this ignores data option of scss/sass in vite.config.ts

This PR fix the issue

[yyx990803]

Thanks - I changed it to additionalData since data is actually meant to be the entire source in node-sass usage, so I think additionalData is more explicit and avoids potential confusion. It also aligns with sass-loader.