Fixing wrong accessibility focus when opening a floating view

> Using common logic for announcing a floating view for widgets and folders

Bug: 79091095
Bug: 79748886
Change-Id: Ibb3fe48e68e724f50d69f51a03d3b35ad0baf625

src/com/android/launcher3/views/AbstractSlideInView.java

@@ -81,6 +81,7 @@ public abstract class AbstractSlideInView extends AbstractFloatingView
             @Override
             public void onAnimationEnd(Animator animation) {
                 mSwipeDetector.finishedScrolling();
+                announceAccessibilityChanges();
             }
         });
     }