Make the suggestion view dismissible

The suggestion view could just be operated once to eliminate flicker.
When the suggestion is completed, there was no way to dismiss it unless
users kill Settings.

This patch allows updating the view's visibility after the activity is
stopped. When the activity restarts, the view can be updated.

Fix: 294153594
Test: robotest
Change-Id: Idc3aada3bff001d603bf2f7737f70f2880f6cc35