[bc25] Adjust OverlayShade padding to account for insets and cutout.

Test: Manually tested by opening and closing the notifications shade on
a foldable device both in a folded and unfolded configuration.
Test: Unit tests build and pass.
Bug: 337849926
Flag: com.android.systemui.dual_shade

Change-Id: I2c3baa781ba687c867f2d96054e3dfd3d58cc3f5