## About The Pull Request
As the title says. Also moves lobby music to use variable instead of the
timer subsystem since it needs to track on client time rather than
server time and variable cooldowns are more relevant for this usecase.
## Why It's Good For The Game
Removes the need for admins to stop all playing sounds. Also, people
with admin sounds turned off will still be able to hear the lobby music
so their experience is improved.
Makes the web sound cooldown timings more consistent, hopefully.
## Changelog
🆑
admin: Play Internet Sound will now automatically stop lobby music and
prevent lobby music from playing at roundend whilst active.
/🆑
