sway: Fix fcitx5

modules/services/i18n/default.nix

@@ -8,9 +8,12 @@ in {
   };
 
   config = lib.mkIf cfg.enable {
+    # TODO: mozc cannot be configured for some reason
     i18n.inputMethod = {
       enabled = "fcitx";
-      ibus.engines = with pkgs.ibus-engines; [ mozc ];
+      fcitx.engines = with pkgs.fcitx-engines; [ mozc ];
     };
+
+    environment.systemPackages = with pkgs; [ fcitx5-configtool fcitx5-gtk ];
   };
 }