fix: add labels for translation in sales_order.js

(cherry picked from commit d544328ffe)

erpnext/selling/doctype/sales_order/sales_order.js

@@ -146,7 +146,7 @@ frappe.ui.form.on("Sales Order", {
 					target: frm,
 					setters: [
 						{
-							label: "Supplier",
+							label: __("Supplier"),
 							fieldname: "supplier",
 							fieldtype: "Link",
 							options: "Supplier",
@@ -783,7 +783,7 @@ erpnext.selling.SalesOrderController = class SalesOrderController extends erpnex
 						target: me.frm,
 						setters: [
 							{
-								label: "Customer",
+								label: __("Customer"),
 								fieldname: "party_name",
 								fieldtype: "Link",
 								options: "Customer",
@@ -838,7 +838,7 @@ erpnext.selling.SalesOrderController = class SalesOrderController extends erpnex
 				} else {
 					const fields = [
 						{
-							label: "Items",
+							label: __("Items"),
 							fieldtype: "Table",
 							fieldname: "items",
 							description: __("Select BOM and Qty for Production"),
@@ -1193,7 +1193,7 @@ erpnext.selling.SalesOrderController = class SalesOrderController extends erpnex
 				{
 					fieldname: "items_for_po",
 					fieldtype: "Table",
-					label: "Select Items",
+					label: __("Select Items"),
 					fields: [
 						{
 							fieldtype: "Data",