(tests) O3-3943: Add test coverage for the useInitialValues hook

[usamaidrsk]

Requirements

• [ ] This PR has a title that briefly describes the work done including the ticket number. If there is a ticket, make sure your PR title includes a conventional commit label. See existing PR titles for inspiration.
• [ ] My work conforms to the OpenMRS 3.0 Styleguide and design documentation.
• [ ] My work includes tests or is validated by existing tests.

Summary

This PR sdds test coverage for the useInitialValues hook

Screenshots

Related Issue

https://openmrs.atlassian.net/browse/O3-3943

Other