Rejoin after dropping from in progress game

[AntlerForce]

https://github.com/beyond-all-reason/BYAR-Chobby/blob/master/LuaMenu/widgets/gui_battle_login_rejoin.lua

There are some functions and text related to rejoin in the repo, investigate if this can be applied in more cases like dropping from an ongoing game. Does ZK do it better?

[TheSilverHornet]

Definitely promote the option if a player dropped unexpectedly, finding the lobby again isn't always that simple even if the player knows they can do it