rename max background apps property

Change-Id: I28c1bfe1e13a2c48c16ec53862a6b804fa90a683
remove unused flag

Change-Id: I0194619222f7507d4f4426dc97941ba8e9bb39f9
add focal overlays

Change-Id: I03826dd9290e9e922d609891a3626a22bcdd7454