Fix remaining SSR tests (#994)
* Fix issue with useOverlayPosition accessing document.body
* Add shim for useLayoutEffect in SSR
* Add missing provider and label to ListBox and Picker ssr tests
* Avoid layout in virtualizer if requestAnimationFrame is not available
* Move RadioGroup name generation into aria instead of stately and make safe for SSR
* Fix weird issue with flex in SSR tests in case-insensitive file systems
* Add SSR tests to CI
* lint
* Fix issues with media queries and flex feature test in SSR
Co-authored-by: Danni <drobinson@livefyre.com>
