Fix webgpu render window for wasm
- Breaks down Adapter/Device request completion and acquisition into different functions. Makes it readable compared to handling both tasks inside the request completion callback.
- Fix wasm compiler errors for
vtkWebAssemblyWebGPURenderWindow
. They escaped CI since the wasm* jobs did not enable webgpu yet. - CI: Enable webgpu in wasm* jobs.
Edited by Jaswant Panchumarti (Kitware)