[Feature request] Event bus

[OskarD]

This project is supposed to show:

Communication between the app windows according to our best practices

Here is all the documentation I can find about how it should be done, but this repo doesn't contain any examples of how this can be done:
https://overwolf.github.io/topics/using-windows-api/communicating-between-windows

It would be very helpful to have this pattern demonstrated in this repo if possible :)