Perhaps this is already in the works. It would be great to see some front end improvements that would allow users to configure dashboards without having to get into YAML coding or CSS. There are a lot of great cards out there to be used however the learning curve for these is likely keeping many from taking advantage of what they offer.
I read that Dwains Dashboard has an upcoming v3 release that will require zero YAML to use, so clearly this can be accomplished.
Any chance that the dev team is working on making enhancements in this area to permit a more functional and customizable dashboard that is drag and drop or similar?