test: fix test_management_nested_view

rdmo/management/tests/test_frontend.py

@@ -111,6 +111,10 @@ def test_management_has_items(logged_in_admin_user: Page, url, model) -> None:
 def test_management_nested_view(logged_in_admin_user: Page, element_name) -> None:
     """For each element type, that has a nested view, click the first example."""
     page = logged_in_admin_user
-    page.goto(f"/management/{element_name}s")
+    page.goto(f"/management/{element_name.replace(' ', '')}s")
     # Open nested view for element type
     page.get_by_title(f"View {element_name} nested").first.click()
+    nested_panels = page.locator(".panel-nested")
+    expect(nested_panels.first).to_be_visible()
+    if element_name not in ("attribute", "option set"):
+        expect(nested_panels.nth(2)).to_be_visible()