small changes to polkit and other minor things

modules/nixos/services/polkit/default.nix

@@ -0,0 +1,29 @@
+{
+  pkgs,
+  config,
+  lib,
+  ...
+}: let
+  inherit (lib) mkIf mkEnableOption;
+  cfg = config.nixos.services.polkit;
+in {
+  options = {
+    nixos.services.polkit.enable = mkEnableOption "Enables polkit";
+  };
+  config = mkIf cfg.enable {
+    systemd.user.services.polkit-gnome-authentication-agent-1 = {
+      description = "polkit-gnome-authentication-agent-1";
+      serviceConfig = {
+        Type = "simple";
+        ExecStart = "${pkgs.polkit_gnome}/libexec/polkit-gnome-authentication-agent-1";
+        Restart = "on-failure";
+        RestartSec = 1;
+        TimeoutStopSec = 10;
+      };
+
+      wantedBy = ["graphical-session.target"];
+      wants = ["graphical-session.target"];
+      after = ["graphical-session.target"];
+    };
+  };
+}