Fix flaky InsetsStateControllerTest

There are three always fail tests caused by app window doesn't have
control of the insets. Set the correct insets mode to solve it.

Mark the tests as pre-submit candidate.

Test: atest InsetsStateControllerTest
Bug: 69229402
Bug: 124088319
Change-Id: I080bc957a0e58b2044c7d256ce268ecad5ecaf8e