fix(UX): reduce duration of barcode scan toasts

default is 7 which is bit too much when you're scanning lots of items,
switched to 5 sec delay
diff --git a/erpnext/public/js/controllers/transaction.js b/erpnext/public/js/controllers/transaction.js
index a8cec0a..5a4519f 100644
--- a/erpnext/public/js/controllers/transaction.js
+++ b/erpnext/public/js/controllers/transaction.js
@@ -444,12 +444,12 @@
 			frappe.show_alert({
 				message: __('Row #{0}: Qty increased by 1', [idx]),
 				indicator: 'green'
-			});
+			}, 5);
 		} else {
 			frappe.show_alert({
 				message: __('Row #{0}: Item added', [idx]),
 				indicator: 'green'
-			});
+			}, 5);
 		}
 	}