Make hexagon drawing consistent with other shapes

[veliadang]

For most shapes, users can simply select the icon and drag to create the shape. However, for the hexagon, users must draw it point by point, which is inconsistent and less intuitive.

Expected Behavior:
The hexagon should follow the same click + drag drawing method as other shapes for a consistent user experience.

[4555jan]

@veliadang i think i can takle this issue can i start working on will you please assign this to me