Delay insets updates similar to KCA updates

If onInsetsChanged comes in before onDisplayConfigurationChanged
when folding/unfolding, this can update the display layout and
leave pip bounds unchanged, leading to wrong snap fraction
when a follow-up onDisplayConfigurationChanged() comes in.

Bug: 365685556
Flag: EXEMPT bugfix
Test: manually reproduce the steps in the bug
Change-Id: I0b5056cd73bae2fe747fa018087e8b1ed4dc333f