<Flex> alignContent prop is not applying styles

[azajac-brl]

If you use alignContent prop in component you can see that the correct class was applied (✅) but it doesn't have corresponding css rules (❌). This can be observed even in storybook.

ℹ️ I don't see class definition in CSS file so I think they might have been omitted and fixing it would require simply adding it to css.