Fix the overflow not being added sometimes

The runnable to add the overflow was only being run when the view
was animated (i.e. while expanded); not when it was collapsed.

Flag: com.android.wm.shell.enable_bubble_bar
Bug: 358304168
Test: manual - add more than 5 bubbles while collapsed
Change-Id: Ibdea61eaf8ecb1d2e3f9ea4fced679b2826d3f9b

quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarView.java

@@ -799,6 +799,9 @@ public class BubbleBarView extends FrameLayout {
             removeView(removedBubble);
             int index = addingOverflow ? getChildCount() : 0;
             addView(addedBubble, index, lp);
+            if (onEndRunnable != null) {
+                onEndRunnable.run();
+            }
             return;
         }
         int index = addingOverflow ? getChildCount() : 0;