[FIX] point_of_sale: fix improperly formatted value

Currently, the `Counted` value in the closing popup is improperly formatted.

Steps to reproduce:
1. Open a new session and create an order';
2. Pay 5.06 dollars with `Bank` and the rest with `Cash`;
3. Close the session;
4. Observe the value `5.0600000000000005` instead of the expected `5.06` in the `Counted` field for the `Bank Payment Method`

This PR addresses the issue by correctly formatting the value.

closes odoo/odoo#123234

Taskid: #3332861
Signed-off-by: Joseph Caburnay (jcb) <jcb@odoo.com>

addons/point_of_sale/static/src/js/models.js

@@ -888,7 +888,9 @@ export class PosGlobalState extends PosModel {
             otherPaymentMethods.forEach((pm) => {
                 if (pm.type === "bank") {
                     state.payments[pm.id] = {
-                        counted: this.env.utils.roundCurrency(pm.amount),
+                        counted: this.env.utils
+                            .roundCurrency(pm.amount)
+                            .toFixed(this.currency.decimal_places),
                         difference: 0,
                         number: pm.number,
                     };