Auto Ghost Ping

[eartharoid]

Discussed at dsctickets#4477

^{Originally posted by Sergeant Ringer at 06.10.2022}
Make it so the bot auto pings the person who created the ticket when someone types in there.

Features:

-Bot will ping then remove the ping (Ghost ping)

• Only have this happen if the person is not active in the ticket
• Have the bot not ping them when a support member sends more then one message (only send it once)