fix: desktopCapturer in electron 17+ (fixes #59)

[kris7t]

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Description of Change

This patch adds a new IPC message from the service renderer to the main process so it can still invoke desktopCapturer.getSources as per https://www.electronjs.org/docs/latest/breaking-changes#removed-desktopcapturergetsources-in-the-renderer

Motivation and Context

Since electron 17, desktopCapturer is only available in the main process: https://www.electronjs.org/blog/electron-17-0#desktopcapturergetsources-in-the-renderer

This should fix #59 and maybe also #32.

Checklist

• My pull request is properly named
• The changes respect the code style of the project (npm run prepare-code)
• npm test passes
• I tested/previewed my changes locally

Release Notes

Fixed screen sharing in services

[vraravam]

I have verified that this works for MS Teams on a mac! Great job @kris7t !

[vraravam]

LGTM!

[cedricroijakkers]

I've built the PR in Linux, tested screen sharing in Jitsi and Teams: working!
Update: Selecting a window instead of a screen also works

[SpecialAro]

Tested on Windows 11 with Teams and Jitsi: working!