fix(employee onboarding): stop showing irrelevant job offer links for a job applicant (#20053)

diff --git a/erpnext/hr/doctype/employee_onboarding/employee_onboarding.js b/erpnext/hr/doctype/employee_onboarding/employee_onboarding.js
index 996dcdf..c128567 100644
--- a/erpnext/hr/doctype/employee_onboarding/employee_onboarding.js
+++ b/erpnext/hr/doctype/employee_onboarding/employee_onboarding.js
@@ -7,6 +7,14 @@
 		frm.add_fetch("employee_onboarding_template", "department", "department");
 		frm.add_fetch("employee_onboarding_template", "designation", "designation");
 		frm.add_fetch("employee_onboarding_template", "employee_grade", "employee_grade");
+
+		frm.set_query('job_offer', function () {
+			return {
+				filters: {
+					'job_applicant': frm.doc.job_applicant
+				}
+			};
+		});
 	},
 
 	refresh: function(frm) {