Fix overview split task icon and app chips flipped and misaligned in fake orientation

This CL fixes the app and icon chip misaligned and wrong positioned in fake landscape and seascape.
The icon chip in seascape are still in RTL and it should be address in a different bug b/326377497.

Fix: 320314835
Fix: 326383211
Fix: 326383010
Bug: 328028913
Flag: ACONFIG com.android.launcher3.enable_overview_icon_menu TEAMFOOD
Flag: ACONFIG com.android.launcher3.enable_grid_only_overview TEAMFOOD
Test: manual. instructions described in the bug report.
Test: atest LandscapePagedViewHandlerTest
Test: atest SeascapePagedViewHandlerTest
Test: atest OverviewTaskSplitImageTest
Change-Id: I9be07cc4f4cf5ee6e1da0d954ed7664d96bd330c