Remove back compat code from visionOS

fix: Circular cut hole.

fix: Pass isCircular to DefaultCutHoleShape.

feat: Custom cut hole.

fix: Dragging after rotation(#1), adjust to fill after rotation, anim…

…ation.

doc: Update documentation to reflect recent changes.

feat: Cut hole stroke.

fix: Overflow.

doc: Update preview image.

fix: iOS 14 compatibility.