Refresh support screen more often

Support screen is now refreshed in the onResume.
This will prevent the situation where you open the
support tab and then you cross a hours of operation
boundary and the button is not updated.

Test: make RunSettingsRoboTests
Bug: 33272736
Change-Id: I9312b3b6f711eda91d5d60b3ff30e5ac12bf89c1