change colour for no found while searching and add delete function in profile page

lib/pages/user_search/user_search.dart

@@ -79,6 +79,7 @@ class UserSearchDelegate extends SearchDelegate<User> {
                   child: Text(
                     "No result found",
                     textAlign: TextAlign.center,
+                    style: TextStyle(color:Colors.black),
                   ),
                 ),
               );