feat: sort institution contract responses by price in descending order

CompanyManagment.EFCore/Repository/InstitutionContractRepository.cs

@@ -2505,7 +2505,7 @@ public class InstitutionContractRepository : RepositoryBase<long, InstitutionCon
                             RollCallInPerson = x.RollCallInPerson,
                         },
                     };
-                }).ToList()
+                }).OrderByDescending(x=>x.Price).ToList()
         };
         
         res.OneTime = new InstitutionContractPaymentOneTimeViewModel()