feat(fcitx5): add gtk plugin

modules/home/users/crumb/fcitx5.nix

@@ -12,6 +12,9 @@ in {
       type = "fcitx5";
       fcitx5 = {
         waylandFrontend = true;
+        addons = with pkgs; [
+          fcitx5-gtk
+        ];
         settings.addons."quickphrase".sections = {
           TriggerKey = {
             "0" = "Super+grave";