Update issue template
Update issue template

Now mentions that the program version can be copied from the "About"
page.

hemirt/chatterino2,hemirt/chatterino2,Cranken/chatterino2,Cranken/chatterino2,fourtf/chatterino2,hemirt/chatterino2,Cranken/chatterino2,Cranken/chatterino2,fourtf/chatterino2,fourtf/chatterino2,hemirt/chatterino2