Fix bug where suggested widget overlaps widget list

We scroll to top when rotating device, which is a behavior that aligns with other AbstractSlideInView's like allApps

Fix: 293203839
Test: verify that when rotating in widget sheet that the suggested widget no longer overlaps with widget list
Flag: no-flag
Change-Id: Icf021a46ae2c2b85b4c55e40cbd2f7e70f83c248