Editor: Interactive handles for editing primitive collider types in the scene view now all use the same logic:
- Dragging a handle expands the size only on that side.
- Holding pins the center in place.
- Holding scales the shape uniformly.
These changes apply to BoxCollider, CapsuleCollider, SphereCollider, BoxCollider2D, CapsuleCollider2D, and CircleCollider2D