Block/model schema alphabetical sorting

First off, I think your latest update is awesome and brings a lot of improvements to the UI and dev experience!

I love that we can now group blocks together and search for things more easily. But a side effect of that ability to group is that blocks are no longer automatically sorted alphabetically by default. So if we don’t take the time go go back through and properly group and manually order our blocks, it can become a bit of a mess.

It would be great to be able to choose whether the list is sorted manually or alphabetically. If alphabetically, we could still drag items into folders, but not have to worry about the order of individual items.

This has really started to become an issue on some of our bigger sites. Trying to manually organize hundreds of block types is a real headache.