Allow pane height to shrink when setting topology

A recent CL added a feature to prevent the pane height from shrinking to
stop widgets from moving around. This is actually not a great experience
because a temporary state can keep the pane height very tall and
increase scrolling.

Flag: com.android.settings.flags.display_topology_pane_in_display_list
Bug: b/352648432
Test: change topology to be vertically shorter and verify the pane height shrinks
Change-Id: Ic48bfecea083a45c702c8719e3c93ceba55ae872