faction control should be disabled for observers outside player range

[andy5995]

Faction control should be disabled in this case:

But still not if players are set to observer in slot 1-4.

It does appear disabled to the headless admin, but not to the player.

If the player tries changing it to a faction, it will automatically switch back to observer after 1 or 2 seconds... but it would be better if the arrows were just disabled.