fix(pos): incorrect expense account set in pos invoice (#25543)

diff --git a/erpnext/public/js/controllers/transaction.js b/erpnext/public/js/controllers/transaction.js
index a2b95cb..f91b432 100644
--- a/erpnext/public/js/controllers/transaction.js
+++ b/erpnext/public/js/controllers/transaction.js
@@ -562,7 +562,7 @@
 							weight_uom: item.weight_uom,
 							manufacturer: item.manufacturer,
 							stock_uom: item.stock_uom,
-							pos_profile: me.frm.doc.doctype == 'Sales Invoice' ? me.frm.doc.pos_profile : '',
+							pos_profile: cint(me.frm.doc.is_pos) ? me.frm.doc.pos_profile : '',
 							cost_center: item.cost_center,
 							tax_category: me.frm.doc.tax_category,
 							item_tax_template: item.item_tax_template,