Handle device lost on WebGPU

[mvaligursky]

related: #6170

• We need to handle the device lost by properly destroying device objects, and recreating them when the device is restored.
• This is complicated as I'm not sure how to trigger a device lost for testing
• initially we need to at least handle this in the examples / application:

	pc.app.graphicsDevice.loseContext();
  	pc.app.graphicsDevice.restoreContext();

Which is the same code that executes during the context lost / restored, but without it actually being lost.

[mvaligursky]

an attempt: #7032

[LeXXik]

You can lose the device, if you launch re-installing video drivers. Here, I am running an empty project with a single script (1.74.0) and launching drivers re-install from nvidia experience:

this.app.graphicsDevice.wgpu.lost.then((info) => { console.log(info) });

[mvaligursky]

Lovely way :)
Not as useful on Mac.

I've seen chrome://gpucrash/ being mentioned too .. but after that I seem to not be able to get new device / adapter, at least on Mac, till I reload the tab.

[mvaligursky]

something to read when I try again.
https://toji.dev/webgpu-best-practices/device-loss.html