Clean up common user modules

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

users/configs/kitty/default.nix

@@ -0,0 +1,12 @@
+{ user ? throw "user argument is required" }: { ... }:
+
+{
+  home-manager.users."${user.name}" = {
+    programs.kitty = {
+      enable = true;
+      extraConfig = ''
+        confirm_os_window_close 0
+      '';
+    };
+  };
+}