Enable media keys and MPRIS control on Linux
This is a Linux only issue.
Currently media keys do not seem to work with Electron. While on Windows or macOS media keys are intercepted by the OS itself, on Linux everyone is supposed to talk to MPRIS over D-Bus in order to get the key to works (MPRIS steals them via D-Bus.)
So MPRIS gives orders to KM and KM needs to respond with its current status to MPRIS, which includes position, track name, album, singer, etc.
grumbles grumbles Linux