Re-apply all apps insets when unfolding.

Previously, if insets had been applied while folded ("phone"),
they would stick around when unfolding ("tablet").

This applies the intended 0 left/right margins when in "tablet"
mode regardless of the insets.

Fix: 321159393
Test: Open all apps in phone landscape, unfold
Flag: NA
Change-Id: Ida1f20711a2a2b9b54f6b2c18abf5abf4fd2b175