nixos/plasma6: use xwayland module

For ability to override used xwayland package

nixos/modules/services/desktop-managers/plasma6.nix

@@ -58,6 +58,7 @@ in {
     ];
 
     qt.enable = true;
+    programs.xwayland.enable = true;
     environment.systemPackages = with kdePackages; let
       requiredPackages = [
         qtwayland # Hack? To make everything run on Wayland
@@ -87,7 +88,6 @@ in {
 
         # Core Plasma parts
         kwin
-        pkgs.xwayland
         kscreen
         libkscreen
         kscreenlocker