Only scroll the side panel if the selection is not view.

Bug: 1266555
Change-Id: Iad6c9414a90c33f3af20f5c6702c4bddf3904790
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4552422


Commit-Queue: Kristi Saney <kristislee@google.com>
Reviewed-by: Abigail Klein <abigailbklein@google.com>
Cr-Commit-Position: refs/heads/main@{#1147417}