Sped up tests that use `{{liquid-if}}`
Sped up tests that use `{{liquid-if}}`

no issue

- some tests were unnecessarily slowed down by waiting repeatedly for animations to complete
- added override for `<LiquidContainer>` component that `<LiquidIf>` uses internally with the only change being to set the default growth animation duration to 5ms when running tests

TryGhost/Ghost,TryGhost/Ghost,TryGhost/Ghost