Jsodc: Improve Object3D

[s-rigaud]

Description

Small improvements to the doc.

Typing of lookAt is a bit hard as there is two ways of calling the method, I think this is a better way to signal that second and third parameters are not required in some cases.

[github-actions]

📦 Bundle size

Full ESM build, minified and gzipped.

	Before	After	Diff
WebGL	336.36 78.33	336.36 78.33	+0 B +0 B
WebGPU	518.85 144	518.85 144	+0 B +0 B
WebGPU Nodes	518.32 143.88	518.32 143.88	+0 B +0 B

🌳 Bundle size after tree-shaking

Minimal build including a renderer, camera, empty scene, and dependencies.

	Before	After	Diff
WebGL	465.35 112.17	465.35 112.17	+0 B +0 B
WebGPU	590.68 159.95	590.68 159.95	+0 B +0 B
WebGPU Nodes	545.99 149.43	545.99 149.43	+0 B +0 B