fix(home-manager): remove incomplete pointerCursor config

Remove incomplete home.pointerCursor configuration that was causing
build errors. The pointerCursor option requires all of name, package,
and size to be set when enable = true.

This fixes the error:
  error: The option 'home-manager.users.mar.home.pointerCursor.name'
         was accessed but has no value defined.

Stylix handles cursor configuration automatically at the system level,
so we only need to provide additional cursor packages without manually
enabling the pointerCursor option.

Author: arunoruto

modules/home-manager/theming/cursors.nix

@@ -13,11 +13,10 @@
       banana-cursor
       catppuccin-cursors
     ];
-    home.pointerCursor = {
-      enable = true;
-    };
 
-    # NOTE: stylix.cursor is configured at system level (nixosModules.stylix)
-    # which auto-configures home-manager cursor settings
+    # NOTE: Cursor configuration is handled by stylix at the system level
+    # (nixosModules.stylix or darwinModules.stylix) which automatically
+    # configures home.pointerCursor with name, package, and size.
+    # We only provide additional cursor packages here.
   };
 }