Add ability to run multiple programs within the same application instance.

[Mysticial]

Right now if you want to run multiple program instances, you need to run multiple instances of the application. And because they share the same config files, you need to rename the binaries.

How difficult is it to add support for multiple program instances? In the past, this was a bad idea because the program was unstable and a single crash on any of the programs would take down everything. But this isn't the case anymore as the program has stabilized.

This will involve significant UI work as well as elimination of the implicit global serial instance.

[Mysticial]

Global serial instance is gone.
"Switch Program tracker" was made for Discord integration. But it supports multiple instances.