Gui Reorg and More Programs

- Gui config reorganization
- Enable picom for dwm
- Install some utilities like arandr, autorandr, and unclutter-xfixes
  for dwm
- Add nerdfonts for FiraCode
- Remove conditional imports list syntax
- Add audio tools like playerctl and pavucontrol
- Enable polkit and add GNOME polkit
- Add more media programs like freecad, audacity, ani-cli, and calibre
- Add flameshot

user/utilities/default.nix

@@ -8,5 +8,6 @@
     ./keyboard-configuration.nix
     ./passwords.nix
     ./xdg.nix
+    ./screenshot.nix
   ];
 }