Live auction observer layout about hack8-next-prediction

[jo-rs]

So, as of right now I've reverted the routing, as discussed.

As far as using saleArtworkConnection, at least now I got a cohesive error:

[
  {
    message: 'https://stagingapi.artsy.net/api/v1/sale/next-prediction-test/sale_artworks?page=1&size=0&total_count=true - {"error":"Unauthorized","text":"The access token is invalid or has expired."}',
    locations: [ [Object] ],
    path: [ 'sale', 'saleArtworksConnection' ]
  }
]

It seems like it's going to come down to attaching an access token on the fetch to get around this.

Still also pending, a bit more code cleanup (and mobile optimisation?).