Improvements to the latejoin job selection screen

[cyberTripping]

I would very much enjoy a late-join AI button. AI is frequently vacant, but due to the way the assignment is scripted, not a late-join option.

I guess the issue is that AI can't move, so if it spawns in and the satellite was used to test a can bomb or something, what then? Maybe it could arrive on shuttle as a shipment from NT, but that would require relying on the kindness of others to set you up