move maid modules to own dir

modules/maid/maid.nix

@@ -0,0 +1,36 @@
+{
+  pkgs,
+  config,
+  lib,
+  inputs,
+  ...
+}:
+{
+  users.users.lucy.maid = { config, ... }: {
+    gsettings.settings = {
+      org.gnome.desktop.interface = {
+        color-scheme = "prefer-dark";
+        gtk-theme = "adw-gtk3";
+        cursor-theme = "macOS";
+        icon-theme = "Papirus";
+        cursor-size = 24;
+      };
+    };
+    systemd.services."app-com.mitchellh.ghostty" = {
+      description = "Ghostty";
+      enableDefaultPath = false;
+      after = [
+        "graphical-session.target"
+        "dbus.socket"
+      ];
+      requires = [ "dbus.socket" ];
+      wantedBy = [ config.maid.systemdGraphicalTarget ];
+      serviceConfig = {
+        Type = "notify"; # reload waits for ghostty to sd_notify READY=1
+        ExecReload = "${pkgs.coreutils}/bin/kill -USR2 $MAINPID";
+        BusName = "com.mitchellh.ghostty";
+        ExecStart = "${pkgs.ghostty}/bin/ghostty --gtk-single-instance=true --initial-window=false";
+      };
+    };
+  };
+}