[Dual Shade] Hide the status bar on QuickSettings shade on wide screens.

Fix: 385077133
Test: Manually tested by opening the quick settings shade on a folded
and unfolded device.
Test: Added unit tests.
Flag: com.android.systemui.dual_shade

Change-Id: Id01c07cf7ee0d8f09dc2fcd21526ba6341d35f9e