Slate's release version 1.0.0

[neerajsohal]

Delighted to release a new prod version of Slate - 1.0.0.

Things to know aka release notes:

1. It's a major release. so previous versions/tags are incomatible.
2. It's a complete overhaul of the source code
3. have re-written the components from scratch.
4. Tailwind classes now live in a separate php class
5. Slate also has a new home now - www

Happy coding! cheers.