Move `GraphicSlot` out of `components` module (#3444)

This PR moves the `GraphicSlot` definition out of the `components`
module, as it doesn't contain a component.

Release Notes:

- N/A
d8ed7c0721Marshall Bowers committed on 11/29/2023, 8:29:33 PM· committed by GitHubparent0d31722
4 files changedLine totals unavailable