Fix test on mac and update prettier ignore

[targos]

• chore: prettier-ignore coverage folder
• test: expect failure for Math.sin test on macOS

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.29%. Comparing base (086dbb9) to head (667b673).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #67   +/-   ##
=======================================
  Coverage   96.29%   96.29%           
=======================================
  Files           5        5           
  Lines         351      351           
  Branches       58       58           
=======================================
  Hits          338      338           
  Misses         13       13           

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