Prevent phantom spawning in vanish #6645

Feature description

When a player is vanished, the insomnia/phantom timer should be paused, so phantoms can't spawn for vanished players, regardless of gamemode

How the feature is useful

Sometimes being in vanish in survival mode for a few in-game days can cause phantoms to spawn. While they still do not attack vanished players, the fact they spawn can give away the fact someone is there.