3.0 beta 1

I’m incredibly excited to introduce the first beta of NewTerm 3! This has been a year in the making, with rebuilt user interface, and a totally new terminal backend.

Thank you to @chrisharper22, @TheRealKeto, @asdfugil, and @elihwyma, who provided various pieces of code that were merged into this release, and countless others who helped test this build before release.