Expose voice chat setting to launcher queries
Resolves https://zandronum.com/tracker/view.php?id=4221
Tested this by querying the new flag from a dev instance of doomlist.net, other server browsers should have no problem doing the same
This instance will be upgraded to Heptapod 17.3.0rc1 on 2024-09-20 between 16:00 and 17:00 UTC+2
Resolves https://zandronum.com/tracker/view.php?id=4221
Tested this by querying the new flag from a dev instance of doomlist.net, other server browsers should have no problem doing the same