feat: Add attribute selector aware class & id renaming

[ardalanamini]

📑 Description

• Add attribute selector aware class & id renaming

✅ Checks

• My code requires changes to the documentation
• I have updated the documentation as required
• I have updated the unit tests

ℹ️ Additional Information

Closes #5

[codecov]

Codecov Report

Merging #6 (514e34d) into main (4765517) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##              main        #6    +/-   ##
==========================================
  Coverage   100.00%   100.00%            
==========================================
  Files            5         5            
  Lines           70       231   +161     
  Branches         8        54    +46     
==========================================
+ Hits            70       231   +161     

Impacted Files	Coverage Δ
src/MiniCSS.ts	100.00% <100.00%> (ø)
src/Node.ts	100.00% <100.00%> (ø)
src/constants.ts	100.00% <100.00%> (ø)
src/index.ts	100.00% <100.00%> (ø)
src/utils.ts	100.00% <100.00%> (ø)

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