show rcon auth level even while not being authed

[ChillerDragon]

The server informs the client about which auth level a rcon logged in player has. Currently the client only shows if authed or not but not at which level.

https://github.com/ddnet/ddnet/blob/236b73df7a89674660e7b5cf2333e6e175e04522/src/game/server/player.cpp#L467

Apparently @SollyBunny already gave this a try

[SollyBunny]

Authed and non authed see it in scoreboard alike with color. It should be a symbol depending on the level (green crown for admin, blue crown with less spikes for moderator, brown crown with no spikes for helper)