Apply correct styles to account filter activities on tablets

The modified styles should work well in Dialer.

In addition, ag/808228 checked the "Customize" filter on click to enable
Talkback. We may need to uncheck it when user presses "Cancel" on
CustomContactListFilterActivity, to avoid 2 filters being checked at the
same time. This error doesn't occur on phones, and occurs only on tablets.

Bug: 26439461
Bug: 25629359
Change-Id: I425c5610a5df15c1a634c5d7f578422c5cefc9ce