Add times to ban commands (#13804)

Resources/Locale/en-US/info/ban.ftl

@@ -7,6 +7,13 @@ cmd-ban-hint = <name/user ID>
 cmd-ban-hint-reason = <reason>
 cmd-ban-hint-duration = [duration]
 
+cmd-ban-hint-duration-1 = Permanent
+cmd-ban-hint-duration-2 = 1 day
+cmd-ban-hint-duration-3 = 3 days
+cmd-ban-hint-duration-4 = 1 week
+cmd-ban-hint-duration-5 = 2 week
+cmd-ban-hint-duration-6 = 1 month
+
 # listbans
 cmd-banlist-desc = Lists a user's active bans.
 cmd-banlist-help = Usage: banlist <name or user ID>