SystemUI: Fix several layout bugs

* QSDetail and QSCustomize panels' clippers starts after the black
  header, but the ripple animation coords were wrong.

* QSDetail and QSCustomize use a transparent view to let QS header
  be seen. Header's height changes with orientation, but QSDetail
  and QSCustomize do nothing about it.
  As a result, there were gaps or blocked views.

Change-Id: I5cefad14b519be99adcf5c913e96385d45b8fb17
Signed-off-by: eray orçunus <erayorcunus@gmail.com>