* feat(interimElement): properly handle multiple interims.

* Adds support for multiple interim elements (like dialog)
* When single interim (default) is enabled, then interims should hide properly (as in toasts).

Fixes #8624. References #8630.

* When hiding wait for currenlty opening interims

* Address EladBezalel's feedback

* Wait for interim element for cancel as well

* Address EladBezalel's feedback