KithMoot desktop 0.1.119

Starting a call sends fewer messages to each public relay: the opening offer and its answer carry the network addresses found in their first fifth of a second, instead of each address going out on its own. A device that falls silent now stays listed for 100 seconds rather than 75, so a later version can send its "still here" message less often. macOS is Developer ID signed, notarised and stapled; Windows remains an unsigned preview.