v3.3.4

Summary

• Fix and improve handling of calc() functions, arbitrary property syntax, and variant matching in the regex parser
• Prevent crashes and file‑handle errors (e.g., FreeBSD watch, nested @apply, :not() handling, iframe plugins) and add TypeScript type support for presets, nesting, and Node 16 module resolution
• Update dependencies (jiti, fast‑glob, browserslist) and enhance automatic var injection for dashed‑ident properties