Update layers after reorder operations

The reorder operations do not always result in visibility changes, and
when not, the child layers are not updated. This change ensures that the
window hierarchy change is always reflected in the child layers for
OP_TYPE_REORDER_TO_FRONT, OP_TYPE_REORDER_TO_BOTTOM_OF_TASK, and
OP_TYPE_REORDER_TO_TOP_OF_TASK

Bug: 320720349
Test: atest TaskFragmentOrganizerControllerTest
Change-Id: Ieb850308e11aa67ab59c8c8eff9fdc69f27071fe