Increased toggling area

Test: Tapping the whole area will now toggle the switch. Note that
it is no longer possible to individually select the title and subtitle during
talkback, but you can select them as a group.
Test: Verified that without talkback the user must actually press
switch.
Fixes: 130398575

Change-Id: I369637f23e41ac6dc4333293b95a5ccae259ee1f