Disable all apps from overview in some cases.

Specifically, whenever floating search bar would not show in
Overview, we also disable this all apps gesture. This covers
cases such as:
 - Landscape on phones
 - Tablets where taskbar shows in Overview

Note this does not depend on ENABLE_FLOATING_SEARCH flag state.
Just reuses the same LauncherState logic used for that.

Bug: 275132633
Test: Manual on tablet, phone, foldable
Flag: ENABLE_ALL_APPS_FROM_OVERVIEW
Change-Id: I6d6cc404a7dfef7c78b45ac830878032027156d8