Removed the forced world and prefabs asset scenes activation from bootstrap (they still stream in the background, bootstrap no longer waits on them)
Skin viewer activates the prefabs scene when opened for the first time, it keeps waiting for it to be loaded if its not ready to be activated
Skin viewer loads bundled workshop skins through a sync path when the async bundle queue is blocked (the world scene holds the queue until its activated it when connecting to a server)