update package detal list and update cargo type input in carton section

lib/pages/main/util.dart

@@ -410,6 +410,11 @@ String removeTrailingZeros(double number) {
   return result;
 }
 
+String twoDecimalFormatted(double number) {
+  String formattedString = number.toStringAsFixed(2);
+  return formattedString;
+}
+
 bool isValidEmail(String email) {
   // Define a regular expression for validating an email
   final emailRegex = RegExp(r'^[^@\s]+@[^@\s]+\.[^@\s]+$');
@@ -561,4 +566,3 @@ Widget settingRow(BuildContext context,
     ),
   );
 }
-