TSL: Rename label() to setName().

[Mugen87]

Fixed #30703.

Description

Instead of having label() and setName(), the idea is to just use setName() for setting a name property.

Using the set*() syntax also matches more nicely with methods like setGroup() or setPBO().

[github-actions]

📦 Bundle size

Full ESM build, minified and gzipped.

	Before	After	Diff
WebGL	338.22 78.88	338.22 78.88	+0 B +0 B
WebGPU	560.23 155.11	560.76 155.2	+533 B +90 B
WebGPU Nodes	559.15 154.89	559.68 154.98	+533 B +91 B

🌳 Bundle size after tree-shaking

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

	Before	After	Diff
WebGL	469.49 113.56	469.49 113.56	+0 B +0 B
WebGPU	635.39 172.03	635.76 172.06	+371 B +29 B
WebGPU Nodes	590.04 161.28	590.41 161.31	+369 B +31 B