feat: css scope

[ClarkXia]

Resolve https://github.com/ice-lab/icestark/issues/413

[codecov-commenter]

Codecov Report

Merging #5346 (b1ced1f) into master (f5067ec) will decrease coverage by 0.07%. The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #5346      +/-   ##
==========================================
- Coverage   30.52%   30.44%   -0.08%     
==========================================
  Files         204      204              
  Lines        5461     5475      +14     
  Branches     1280     1334      +54     
==========================================
  Hits         1667     1667              
- Misses       3759     3773      +14     
  Partials       35       35              

Impacted Files	Coverage Δ
packages/plugin-stark-module/src/babelPlugin.ts	0.00% <ø> (ø)
packages/plugin-stark-module/src/index.ts	0.00% <0.00%> (ø)