feat: update type and customer is required

lib/presentation/home/models/order_type.dart

@@ -1,8 +1,8 @@
 enum OrderType {
   dineIn('DINE IN'),
   takeAway('TAKE AWAY'),
-  grab('GRAB'),
-  delivery('DELIVERY');
+  delivery('DELIVERY'),
+  freeTable('FREE TABLE');
 
   final String value;
   const OrderType(this.value);
@@ -13,4 +13,4 @@ enum OrderType {
       orElse: () => OrderType.dineIn,
     );
   }
-} 
+}