Reworks the dialog tests not to depend on `fakeAsync` anymore.

(cherry picked from commit 42eb704)

Adds a harness for the datepicker actions component.

Fixes #32921.

(cherry picked from commit 46b67d1)

Reworks the input tests not to depend on `fakeAsync` anymore.

(cherry picked from commit 2ad4274)

…instead of user id to match panels with triggers (#32855)

(cherry picked from commit c2cb1ab)

See associated pull request for more information.

…#32944)

Fixes that when we return the item to its original container, we may end up putting it at the wrong index, because the logic that de-duplicates the item runs too late.

Fixes #32940.

(cherry picked from commit 0767a3c)