* Fixed MPRIS OpenUri function not respecting ncspot's shuffle setting.
* Added support for Wayland clipboard.
* Formatted code properly using cargo fmt.
* Added is_wayland() function to check if using Wayland.
* Added wayland_clipboard feature flag.
It can be used to enable Wayland clipboard support.
Changed is_wayland() function to check wayland related environment
variables at runtime and not compile time.
