Fix: betterlockscreen in its own file

hm/desktop/bspwm.nix

@@ -6,6 +6,7 @@
 }: {
   imports = [
     ../common/picom.nix
+    ../common/betterlockscreen.nix
   ];
   home.packages = with pkgs; [
     bspwm
@@ -16,9 +17,6 @@
     rofi
     feh
     font-awesome
-    xorg.xset
-    xidlehook
-    betterlockscreen
     pywal16
     imagemagick
     pulsemixer
@@ -130,21 +128,6 @@
     };
   };
 
-  systemd.user.services.xidlehook = {
-    Unit.Description = "Idle: lock at 5min, suspend at ~8min";
-    Service = {
-      ExecStart = ''
-        ${pkgs.xidlehook}/bin/xidlehook \
-          --detect-sleep \
-          --not-when-fullscreen \
-          --timer 300  "${pkgs.betterlockscreen}/bin/betterlockscreen -l dim" "" \
-          --timer 500  "systemctl suspend" ""
-      '';
-      Restart = "always";
-    };
-    Install.WantedBy = ["graphical-session.target"];
-  };
-
   programs = {
     alacritty = {
       enable = true;