WindowLayout: Layout IN_SCREEN floating windows in screen

Uses screen coordinates when placing floating LAYOUT_IN_SCREEN
windows, even when there is a cutout. Making sure that the window
does not overlap the cutout area is instead made sure by the
clip/shift-to-displayFrame logic in WindowState.

Change-Id: Ic485b8f191db737bb7a10b1694a489111afd5f2c
Fixes: 76199703
Test: Run CalcyIV, make sure that the expanded window is properly attached to the non-expanded window.