Switch from emacs to emacs-gtk

emacs/default.nix

@@ -1,7 +1,10 @@
 { pkgs, lib, config, configDir, fetchFromGitHub, ... }:
 
 {
-  programs.emacs.enable = true;
+  programs.emacs = {
+    enable = true;
+    package = pkgs.emacs-gtk;
+  };
   services.emacs.enable = true;
   home.activation.doom = lib.hm.dag.entryAfter["writeBoundary"] ''
     if [ ! -d .emacs.d ]; then