v4.0.0

WHEW! After a VERY painful 5+ weeks, I am delighted to say that Displagent now offers a new form of Microsoft integration that is multi-factor authentication (MFA) compatible!

I have a whole new set of docs to cover this on the docsite, please see https://docs.displagent.io/setup/microsoft-integration

I also added a small, green/red Microsoft indicator on the toolbar in the upper right-hand corner and made a few small UI improvements here and there.