Move node.display into socket plugin

[lalalune]

moon: hmm weird bug we're noticing, where node.display is not a function, might be related to worker fixes
parzvial: Oh yeah. We would need to remove those. On server when worker runs node.display isn’t a function since it is running on the server.
I could move the display functionality into the socket plugin when the node received the socket message from the servers worker.

[lalalune]

Remove node.display and push outputs of nodes to cache plugin