feat(Dialog): animate.leave

### Feature Description

When you use the if control flow or ViewContainerRef.createComponnt in Angular, animate.enter and animate.leave work. However, animate.leave support is not provided in components such as Dialog and Overlay. I think the reason is that the overlay is directly destroyed.

### Use Case

Use case: https://stackblitz.com/edit/stackblitz-starters-trwgh2rt?file=package.json

Start by tracing the Dialog and Overlay entry points involved when an overlay is destroyed, then reproduce the behavior using the linked StackBlitz use case. Compare the if control flow and ViewContainerRef.createComponent cases with Dialog and Overlay, and confirm that animate.leave is supported before destruction without breaking existing behavior.

Written by the indexing model from the issue text.