Add a lambda based color overload to ExpandableController

This CL adds a lambda color parameter to ExpandableController, so that
the background color of an Expandable can be animated without causing
recompositions.

Bug: 402059261
Test: Manual, with the TileExpandable
Flag: com.android.systemui.qs_ui_refactor_compose_fragment
Change-Id: I0714871b053e6fc2a028804af79fe7b2bd384c3d