feat: add Company Contact Person in selling transactions (backport #44362) (#44397)

* feat: add Company Contact Person in selling transactions (#44362)

(cherry picked from commit f6776c7d6b)

* chore: resolve conflicts

---------

Co-authored-by: Raffael Meyer <14891507+barredterra@users.noreply.github.com>

erpnext/public/js/queries.js

@@ -64,6 +64,17 @@ $.extend(erpnext.queries, {
 		}
 	},
 
+	company_contact_query: function (doc) {
+		if (!doc.company) {
+			frappe.throw(__("Please set {0}", [__(frappe.meta.get_label(doc.doctype, "company", doc.name))]));
+		}
+
+		return {
+			query: "frappe.contacts.doctype.contact.contact.contact_query",
+			filters: { link_doctype: "Company", link_name: doc.company },
+		};
+	},
+
 	address_query: function (doc) {
 		if (frappe.dynamic_link) {
 			if (!doc[frappe.dynamic_link.fieldname]) {