Add Tests for Flyout and Popup Launch

[chiaramooney]

Summary

We recently had a regression in the behavior of the Flyout component, where the component fired a RedBox error upon attempt to launch the Flyout. This was found during the manual validation of gallery for the v71 release.

Currently, we do not have automated testing to check that Popups and Flyout can successfully launch. These should be added to our test set.

Motivation

Prevent behavior regressions.

Basic Example

No response

Open Questions

No response

[TatianaKapos]

manually validated for 73! would be nice to have these for 74 but not necessary :)