Update constants.dart

lib/constants.dart

 import 'package:flutter/material.dart';
 
-// list of colors that we use in our app
+// list of colors that we use in CIAT app
 const kBackgroundColor = Color(0xFFF1EFF1);
 const kPrimaryColor = Color(0xFF035AA6);
 const kSecondaryColor = Color(0xFFFFA41B);