[Feature] Update the VTK book to include vtk-js

[jreuben11]

Motivation

The VTK book is stuck in the 90s - https://examples.vtk.org/site/VTKBook/11Chapter11/ for visualization the web, they are talking about VRML + Java3D !

Detailed Description

Kitware needs to educate onboarders on modern WASM + WebGPU with vtk-js Threejs integrations