Use gesture instead of stateManager to go to AllApps

* Hypothesis for why ALL_APPS isn't showing is that
directly navigating to it via state manager might have
some more hiccups (historically it has), so we do it
now via swiping up on workspace

Bug: 288152874
Flag: None
Test: Passes locally
Change-Id: I8ada7d3bde88fa54c9aab84012a9b0e3e045069e