Make section descriptions look the same
Make section descriptions look the same

In both the declaration and the 'service essentials' sections. In other words,
don’t have it scoped to the declaration.

Also sets the type size explicitly for safety.

alphagov/digitalmarketplace-supplier-frontend,alphagov/digitalmarketplace-supplier-frontend,alphagov/digitalmarketplace-supplier-frontend,alphagov/digitalmarketplace-supplier-frontend