feat: add supplier payment and allocation models, API, and frontend components

- Created `SupplierPayment` and `SupplierPaymentGRN` models for managing supplier payments and their allocations.
- Implemented API endpoints for listing and creating supplier payments.
- Developed frontend components for displaying and recording supplier payments, including a dialog for payment creation.
- Integrated GRN allocations into the payment creation process, ensuring total allocations match the payment amount.
- Added pagination and loading states for the payments list.

Distribution/Models/ReceivedCheque.cs

@@ -4,7 +4,7 @@ namespace Distribution.Models
 {
     public class ReceivedCheque : Template
     {
-        public int CompanyId { get; set; }
+        public int? CompanyId { get; set; }
         public int? BranchId { get; set; }
 
         public ReceivedFromType ReceivedFromType { get; set; }