fix: avoid Jinja dict items collision in employee card

tests/test_employee_detail_template.py

@@ -7,6 +7,8 @@ def test_employee_detail_template_is_human_readable():
     assert "Current data" not in template
     assert "<pre class=\"code\"" not in template
     assert ">Tabs<" not in template
+    assert "contacts.items" not in template
+    assert "contacts.contact_items" in template
     assert "Основная информация" in template
     assert "Контакты" in template
     assert "Разделы профиля" in template