DeskClock: fix alarm ringtone layout issue

Increasing alarm volume change http://review.cyanogenmod.org/#/c/31623/
caused a layout issue with the alarm ringtone.

Before: http://i.imgur.com/yRi4eUs.png

After: http://i.imgur.com/mdXVeo8.png

Patch set 2 : Reduce row height to 48dp

Change-Id: Ib98d82e361e83a76f08550f3b74df0c6270645a8
Revert "Make the settings menu accessible on every tab"

This commit has unintended consequences with the UI layout of the start/stop button of the timer (see http://i.imgur.com/G4eNx2Z.png )  The button used to be centered and is now off center next to the menu button.

I am not sure what the use case is for this commit (i.e. what user problem we are trying to solve here) but IMHO the end result is not worth it.

This reverts commit 057d88c735d8d0e7dce9714f9db28388501c24e7

Change-Id: I2ffbba4cf6f46ed06d67b848e482b484c1ca4c92