Chore: Changed the account_type and voucher_type enum.

The account type enum is not stored in the database as an enum.
The voucher_type enum is now a table in the database.

Feature: Closing stock can now be saved and in each department.

overlord/src/app/purchase/purchase-dialog.component.ts

@@ -42,7 +42,7 @@ export class PurchaseDialogComponent implements OnInit {
       map((x) => (x !== null && x.length >= 1 ? x : null)),
       debounceTime(150),
       distinctUntilChanged(),
-      switchMap((x) => (x === null ? observableOf([]) : this.productSer.autocomplete(x))),
+      switchMap((x) => (x === null ? observableOf([]) : this.productSer.autocomplete(x, true))),
     );
   }