Get rid of @electron/remote

[paul-marechal]

From https://www.npmjs.com/package/@electron/remote:

⚠️ Warning! This module has many subtle pitfalls. There is almost always a better way to accomplish your task than using this module. For example, ipcRenderer.invoke can serve many common use cases.

It would also help to enable Electron's renderer isolation and communicate with the main process in a different way.