* Add option for admins to disable bwoink
In a vain attempt to get people to ahelp more, provide the possibility
for admins to not play the bwoink sound if they don't want to scare the
player.
* Add silent indicator to discord relay
* Use string interpolation
* Add ahelp typing indicator for admins
* Lower typing updates throttle from 3 seconds to 1
* Add stopping typing when sending a message
* Lower typing indicator timeout from 15 to 10 seconds
