Redesign of the org/account area

Based on feedback from folks I've been talking too, I've changed the design of the account and organization area to make it more easy to navigate and use. Changed to stronger colors and made content more visible. Still a few changes to go, but I'm happy with the result so far.

At the same time, made copy changes to the Homepage and a few improvements to the onboarding (state for no data yet) of new orgs and users