[NO-TICKET] Use Popover API in the Menu component

[nvms]

Description of change

See how the border of the table peeks through the Menu in the image below? Since we aren't using a real table, we're fighting indexing weirdness here. The best solution is to use the Popover API as @thewatermethod suggested.

Before:

After:

How to test

• Make sure the context menu works everywhere it was working previously, which includes the widget container header overflow menus, and any tables that have rows with an overflow menu within it.

Issue(s)

• https://jira.acf.gov/browse/TTAHUB-0

Checklists

Every PR

• Meets issue criteria
• JIRA ticket status updated
• Code is meaningfully tested
• Meets accessibility standards (WCAG 2.1 Levels A, AA)
• API Documentation updated
• Boundary diagram updated
• Logical Data Model updated
• Architectural Decision Records written for major infrastructure decisions
• UI review complete
• QA review complete

Before merge to main

• OHS demo complete
• Ready to create production PR

Production Deploy

• Staging smoke test completed

After merge/deploy

• Update JIRA ticket status