feat: support transpilation of `<style>` blocks

[danielroe]

[codecov-commenter]

Codecov Report

Merging #27 (27a98a7) into main (8f3a513) will increase coverage by 0.76%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #27      +/-   ##
==========================================
+ Coverage   95.37%   96.13%   +0.76%     
==========================================
  Files           6        7       +1     
  Lines         324      388      +64     
  Branches       70       79       +9     
==========================================
+ Hits          309      373      +64     
  Misses         15       15              

Impacted Files	Coverage Δ
src/loader.ts	100.00% <100.00%> (ø)
src/loaders/index.ts	100.00% <100.00%> (ø)
src/loaders/sass.ts	100.00% <100.00%> (ø)
src/loaders/vue.ts	100.00% <100.00%> (ø)

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[danielroe]

@pi0 Any issue with this pr?

[pi0]

Can we lazy import sass dependency and also remove from dependencies? (it can be included from user path).