ibus service: refactoring

nixos/modules/module-list.nix

@@ -44,6 +44,7 @@
   ./hardware/video/ati.nix
   ./hardware/video/webcam/facetimehd.nix
   ./i18n/inputMethod/fcitx.nix
+  ./i18n/inputMethod/ibus.nix
   ./installer/tools/auto-upgrade.nix
   ./installer/tools/nixos-checkout.nix
   ./installer/tools/tools.nix
@@ -67,7 +68,6 @@
   ./programs/environment.nix
   ./programs/freetds.nix
   ./programs/fish.nix
-  ./programs/ibus.nix
   ./programs/kbdlight.nix
   ./programs/light.nix
   ./programs/man.nix