Do not propagate always-on-top config to child containers

Doesn't make sense to propagate the always-on-top config to
child containers. It also prevents positioning a newly
added child WC to top.

Bug: 230008268
Test: atest ConfigurationContainerTests
Change-Id: I981636f3297e5c77393320d052a7f1b4e5c5e97b
4 files changed