More precision in the coms consol panel

[NeverPire]

I would like to suggest to add in the description of the trade caravan request in the coms consol panel : you need 1100 silver -- "in the range of a powered orbital beacon" --

It will permit to avoid to a lot of new players to think about a bug when they can't pay because they have not placed their silvers in the range of a powered orbital beacon.