FullScreenViewModal.contentViewContainerStyle, useAnimatedMessageTooltipButton, and InnerTextMessage were using properties that weren't defined on this type.
Separating this out to make it clear why the changes to AnimatedStyleObj are being made.
NOTE: CI will fail on this diff. I considered the possibility of fixing Flow errors BEFORE upgrading Flow, but it wasn't possible... in some cases, the fixes to support the new version of Flow caused errors in the old version. I could have hidden these type errors with $FlowFixMe lines and then later revert those, but that seemed like too much busy work.
Depends on D10004