Auto connect PipeWire nodes on startup

When starting engine-core with the pipewire + jack setup the nodes (input, liquidsoap and output) are not connected automatically. You have to connect the nodes every time you start engine-core. This can be done in two ways (UI and CLI) but is still tedious and can be easily forgotten.

There is a way to connect nodes automatically using Wireplumber. This would be the desirable solution.