chore: change dialog title

src/private/fornitures/FurnitureVariantManagement.jsx

@@ -209,7 +209,7 @@ export default function FurnitureVariantManagement() {
   return (
     <SectionContainer sx={{ width: '100%' }}>
       <Dialog open={open} onClose={() => { setOpen(false); setEditingData(null); }} maxWidth="md" fullWidth>
-        <DialogTitle>{editingData ? 'Edit Furniture Variant' : 'Add Furniture Variant'}</DialogTitle>
+        <DialogTitle>{editingData ? 'Edit Product' : 'Add Product'}</DialogTitle>
         <DialogContent>
           <AddOrEditFurnitureVariantForm
             initialData={editingData}