Merge changes I614fdc8d,I2e56ef71,Ic736fc76,If47c1138,I1f2a3ef0 into main

* changes:
  [CS] Remove CentralSurfaces from SystemActions.
  [CS] Remove CentralSurfaces#isKeyguardShowing.
  [CS] Remove CS#isKeyguardShowing from OverviewProxyRecentsImpl.
  [CS] Remove CS#isKeyguardShowing from SystemActions.
  [CS] Update NavBar to call KeyguardStateController not CentralSurfaces.