Get the status from the status file instead of just the text from the frontmatter. We have a data file with the status in which we use in the contents file. We can also use it in the actual standards files themselves
Colour code the different statuses to make it visually easier to see the status
Use 'in review' for standards rather than draft, but still use draft for guidance
Closes https://github.com/alphagov/data-standards-authority/issues/88