Defining Wayland's app_id #378
Description
Currently, the Linux Show Player V0.6.5 does not appear to have a Wayland app_id.
Having an app_id defined would be useful because it makes it easier to automate window management.
For example, it would allow actions like bringing focus back to the Linux Show Player after focusing on an external window.
It is still possible to do this using window titles, but accidents may occur when similar window titles exist.
Being able to override it via a command-line option like --app-id=APPID might be preferable, as it would simplify managing multiple instances.
