[hotfix] fixed Permissions Error while fetching allow_stale field value from Accounts Settings (#11182)

* [hotfix] fixed Permissions Error while fetching allow_stale field value from Accounts Settings

* [minor] renamed the allow_stale_rate method to stale_rate_allowed

erpnext/public/js/utils.js

@@ -37,6 +37,10 @@ $.extend(erpnext, {
 		}
 	},
 
+	stale_rate_allowed: () => {
+		return cint(frappe.boot.sysdefaults.allow_stale) || 1;
+	},
+
 	setup_serial_no: function() {
 		var grid_row = cur_frm.open_grid_row();
 		if(!grid_row || !grid_row.grid_form.fields_dict.serial_no ||