Suggest to enhance electron's screen sharing params

Here

If display scale factor is not equal to 1, the media stream quality will be downgraded. Suggest to multiply scale factor.
As was:
maxWidth: window.screen.width,
maxHeight: window.screen.height
To be:
maxWidth: window.screen.width * window.devicePixelRatio,
maxHeight: window.screen.height * window.devicePixelRatio

You should probably create a PR for this - open a ticket on github.