Fix large screen QS header

The problem happened when going form the expanded clock layout (when QS are fully expanded), to the large screen transition layout.

This fix sets the header transition to start when on large screens.

Without doing this, the transition was staying at the latest progress in the previous constraintSet.

Bug: 261791489
Test: presubmits + tested locally
Change-Id: Ice698e169b1328c3a83189c268dbac820b564cf7