feat: 📝 static type improvement color constants and PolygonZone

[onuralpszr]

Python 3.10.13 (main, Aug 24 2023, 12:59:26) [Clang 15.0.0 (clang-1500.1.0.2.5)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import supervision as sv

>>>
>>> type(sv.Color.WHITE)
<class 'supervision.draw.color.Color'>

Fix: #1010

[onuralpszr]

@SkalskiP color types are fixed.

[onuralpszr]

@SkalskiP I also changed my title and added extra improvement for polygonZone as well, tests are passed. Please check when you had time as well :)