Fix drp cloning

[JanLewDev]

Currently canvas example does not run, when trying to paint a pixel it throws an error (screenshot below).

This is because when deep cloning the drp with the current approach

		this.originalDRP = Object.create(
			Object.getPrototypeOf(drp),
			Object.getOwnPropertyDescriptors(structuredClone(drp)),
		);

comparing drp and originalDRP, the cloning converts Pixel objects to just objects with the functions, both logged below