Have All Set aniamted background extend edge-to-edge

There's already a separate ConstraintLayout for the content that needs
to have fitsSystemWindows="true", but the drawing can extend past system
insets.

Test: Run AllSetActivity, manually inspect layout/drawing
Fixes: 237052706
Change-Id: I8ff1e3a036fb5c6bfa8586b041c9e5eae55c321d
diff --git a/quickstep/res/layout/activity_allset.xml b/quickstep/res/layout/activity_allset.xml
index 0cae733..56e1d16 100644
--- a/quickstep/res/layout/activity_allset.xml
+++ b/quickstep/res/layout/activity_allset.xml
@@ -26,7 +26,7 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:id="@+id/content_view"
-        android:fitsSystemWindows="true">
+        android:fitsSystemWindows="false">
 
         <com.airbnb.lottie.LottieAnimationView
             android:id="@+id/animated_background"