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

tests/src/com/android/launcher3/ui/WorkProfileTest.java

@@ -85,7 +85,7 @@ public class WorkProfileTest extends AbstractLauncherUiTest {
         waitForStateTransitionToEnd("Launcher internal state didn't switch to Normal",
                 () -> NORMAL);
         waitForResumed("Launcher internal state is still Background");
-        executeOnLauncher(launcher -> launcher.getStateManager().goToState(ALL_APPS));
+        mLauncher.getWorkspace().switchToAllApps();
         waitForStateTransitionToEnd("Launcher internal state didn't switch to All Apps",
                 () -> ALL_APPS);
     }