Docs: More JSDoc.

[Mugen87]

Related issue: -

Description

Moves examples/jsm/curves and examples/jsm/environments to JSDoc.

The PR also adds module support back to the template. Previously, only classes were supported but there are source files in examples/jsm which are no classes but a collection of functions like NURBSUtils. Since they can't be imported over the (global) THREE namespace, it would be misleading if these functions are listed in the "Globals" category.

Modules are treated like classes in the navigation and search. Their page just holds no class definition.

[github-actions]

📦 Bundle size

Full ESM build, minified and gzipped.

	Before	After	Diff
WebGL	336.02 78.26	336.02 78.26	+0 B +0 B
WebGPU	522.67 145.12	522.67 145.12	+0 B +0 B
WebGPU Nodes	522.14 145.01	522.14 145.01	+0 B +0 B

🌳 Bundle size after tree-shaking

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

	Before	After	Diff
WebGL	465.06 112.14	465.06 112.14	+0 B +0 B
WebGPU	593.08 160.73	593.08 160.73	+0 B +0 B
WebGPU Nodes	548.2 150.17	548.2 150.17	+0 B +0 B