Clarify "Whitelist" in /roomauth as staff-only
Clarify "Whitelist" in /roomauth as staff-only

I definitely heard some staff members be concerned that it shouldn't
be shown to regular users.

sirDonovan/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,urkerab/Pokemon-Showdown,xfix/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,svivian/Pokemon-Showdown,urkerab/Pokemon-Showdown,xfix/Pokemon-Showdown,xfix/Pokemon-Showdown,xfix/Pokemon-Showdown,svivian/Pokemon-Showdown,Zarel/Pokemon-Showdown,Zarel/Pokemon-Showdown,Zarel/Pokemon-Showdown,xfix/Pokemon-Showdown,svivian/Pokemon-Showdown,urkerab/Pokemon-Showdown,svivian/Pokemon-Showdown,svivian/Pokemon-Showdown