arcan: refactor

To be more similar to other expressions (especially XFCE).

pkgs/desktops/arcan/default.nix

@@ -1,6 +1,6 @@
-{ callPackage, lib, pkgs }:
+{ config, lib, pkgs }:
 
-rec {
+lib.makeScope pkgs.newScope (self: with self; {
   # Dependencies
 
   espeak = pkgs.espeak-ng;
@@ -40,4 +40,4 @@ rec {
     name = "all-wrapped";
     appls = [ durden pipeworld ];
   };
-}
+})

pkgs/top-level/all-packages.nix

@@ -32452,9 +32452,7 @@ with pkgs;
 
   ### DESKTOP ENVIRONMENTS
 
-  arcan = recurseIntoAttrs (callPackage ../desktops/arcan {
-    callPackage = newScope arcan;
-  });
+  arcan = recurseIntoAttrs (callPackage ../desktops/arcan { });
 
   cdesktopenv = callPackage ../desktops/cdesktopenv { };