Gizmos that contain 3D wire parts, like the rounded lines of the "Rotate" gizmo, have a fairly small hit size that make it hard to grab, especially with tablet pens. This PR just increases the width of these lines during the (invisible) selection process. This is done in such ability way that it could be increased in the future for touch if needed. Pull Request: https://projects.blender.org/blender/blender/pulls/138406