Separate System and User packages

- Move user programs out of systems section and int
  user section
- Install user packages with home manager rather than
  system wide

system/utilities/dbus.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+{
+  services.dbus = {
+    enable = true;
+    packages = [ pkgs.dconf ];
+  };
+
+  programs.dconf = {
+    enable = true;
+  };
+}