Updated required packages for arch (#2109)
Updated required packages for arch (#2109)

* Updated required packages for arch

Also added thread number to make, so it won't build with just 1 thread.

* Update BUILDING_ON_LINUX.md

Co-authored-by: fourtf <5e7cb81a288a536eb230ff08c319401bb3586241@gmail.com>
Cranken/chatterino2,hemirt/chatterino2,hemirt/chatterino2,Cranken/chatterino2,fourtf/chatterino2,hemirt/chatterino2,Cranken/chatterino2,Cranken/chatterino2,fourtf/chatterino2,hemirt/chatterino2,fourtf/chatterino2