chore: Add idle-boost, nostartupmessages, shut_up_gl_error, appliedsorting

Closes https://github.com/Griefed/ServerPackCreator/issues/872 Closes https://github.com/Griefed/ServerPackCreator/issues/871 Closes https://github.com/Griefed/ServerPackCreator/issues/870 Closes https://github.com/Griefed/ServerPackCreator/issues/869