[MHV-55425] added new app to registry.

[robertbylight]

Summary

Work related to isolating the mhv medications app under the applications directory

• added new app to registry

Related issue(s)

Integrated Apps - Medications - Copy the code to the new shared location

Isolated Apps - RX - Copy the Code to the new shared location

Testing done

Screenshots

Note: This field is mandatory for UI changes (non-component work should NOT have screenshots).

	Before	After
Mobile
Desktop

What areas of the site does it impact?

(Describe what parts of the site are impacted if code touched other areas)

Acceptance criteria

Quality Assurance & Testing

• I fixed|updated|added unit tests and integration tests for each feature (if applicable).
• No sensitive information (i.e. PII/credentials/internal URLs/etc.) is captured in logging, hardcoded, or specs
• Linting warnings have been addressed
• Documentation has been updated (link to documentation *if necessary)
• Screenshot of the developed feature is added
• Accessibility testing has been performed

Error Handling

• Browser console contains no warnings or errors.
• Events are being sent to the appropriate logging solution
• Feature/bug has a monitor built into Datadog or Grafana (if applicable)

Authentication

• Did you login to a local build and verify all authenticated routes work as expected with a test user

⚠️ Team Sites (only applies to modifications made to the VA.gov header) ⚠️

• The header does not contain any web-components
• I used the proxy-rewrite steps to test the injected header scenario
• I reached out in the #sitewide-public-websites Slack channel for questions

Requested Feedback

(OPTIONAL) What should the reviewers know in addition to the above. Is there anything specific you wish the reviewer to assist with. Do you have any concerns with this PR, why?

[robertbylight]

no longer needed since the git move was successfully done without the need for an extra app as backup