Update test mocks for new serviceUrlBehavior setting

f58cfe9 (Open script service URLs in-app or external) added
serviceUrlBehavior to AppSettings and a new useDropdownMenuClose
export from dropdown-menu. The unit tests were not updated:

- use-settings.test.ts: expected settings objects missed the new
  serviceUrlBehavior field.
- workspace-scripts-button.test.tsx: dropdown-menu mock missed
  useDropdownMenuClose, breaking HostLinkRow render.

packages/app/src/screens/workspace/workspace-scripts-button.test.tsx

@@ -107,6 +107,7 @@ vi.mock("@/components/ui/dropdown-menu", () => ({
         : children}
     </button>
   ),
+  useDropdownMenuClose: () => () => {},
 }));
 
 vi.mock("lucide-react-native", () => {