Translate the taskbar icons to match nav handle shape.

- We need to reset icon alignment whenever icon layout bound
  changes. This fixes the issue where we build an icon
  alignment animator before any of the views are laid out.
- Separated animation logic between.
  createTransientAnimToIsStashed and createAnimToIsStashed
* The values still require a bit more tuning but this gets us
  a lot closer to spec for many of the motion polish.

Bug: 267806083
Bug: 246634367
Bug: 246635237
Test: manual
Change-Id: Id122134b22ef4e418ce632e4a8137239dc8bb313

quickstep/src/com/android/launcher3/taskbar/FallbackTaskbarUIController.java

@@ -17,7 +17,6 @@ package com.android.launcher3.taskbar;
 
 import static com.android.launcher3.taskbar.TaskbarStashController.FLAG_IN_APP;
 import static com.android.launcher3.taskbar.TaskbarStashController.FLAG_IN_STASHED_LAUNCHER_STATE;
-import static com.android.launcher3.taskbar.TaskbarStashController.TASKBAR_STASH_DURATION;
 
 import android.animation.Animator;
 
@@ -93,7 +92,8 @@ public class FallbackTaskbarUIController extends TaskbarUIController {
     }
 
     private void animateToRecentsState(RecentsState toState) {
-        Animator anim = createAnimToRecentsState(toState, TASKBAR_STASH_DURATION);
+        Animator anim = createAnimToRecentsState(toState,
+                mControllers.taskbarStashController.getStashDuration());
         if (anim != null) {
             anim.start();
         }