Need a command to exit the server, have to Ctrl+C twice

[klaribot]

There should probably eventually be a way to quit or exit gracefully on the server when in interactive mode.
Presently, the only way to shut down the server is by hitting Ctrl+C at least twice, causing the program to throw a non-zero exit code.
Gjum suggested a proper implementation of process.exit

I'll look more into how to issue said exit command on the docker-compose side if this gets implemented.