@ in team chat and css_asay read ">[STAFF][RANK] name: message", and @ in all chat and a
player's css_say read ">[RANK] name: message", with the rank from the sender's highest #rank/...
group (O, SA, A, TA, M, TM, H). Staff in no rank group get ">[STAFF] name" and "> name". A
non-staff player's @ team chat reads ">[PLAYER] name: message". Console's messages are unchanged.
The lines are new en.json keys: sa_staffchat_template, sa_staffsay_template, their _norank
variants and sa_staffchat_template_player.