Update to Electron 29 (Electron 23 No Longer Supported)

[scottkuhl]

The version of Electron that Electron.NET is using (23) is no longer supported as of August last year. The project needs to update to the latest version of Electron.

[scottkuhl]

I looked at updating this myself in the package.json files, but it's a six version jump and I'm not sure I would be able to test the code base well enough to support the community.

[scottkuhl]

Also, IMO there should be a policy in place in when the version of Electron in this project will be updated. For example, "We commit to updating to the new version of Electron within 4 weeks of its release."