fix ghostty on darwin

platforms/nix-darwin/modules/nmasur/presets/services/dock.nix

@@ -6,7 +6,6 @@
 }:
 
 let
-  inherit (config.nmasur.settings) username;
   cfg = config.nmasur.presets.services.dock;
 in
 
@@ -50,7 +49,7 @@ in
         "/System/Applications/Messages.app"
         "/System/Applications/Mail.app"
         "/Applications/zoom.us.app"
-        "${config.home-manager.users.${username}.programs.ghostty.package}/Applications/Ghostty.app"
+        "/Applications/Ghostty.app"
         "${pkgs.discord}/Applications/Discord.app"
         "${pkgs.obsidian}/Applications/Obsidian.app"
       ];