Add 'Apply to G-Cloud 7…' link
Add 'Apply to G-Cloud 7…' link

This commit adds a link to the supplier's homepage when the framework is open.

The type size of the link is a touch too big, but there's some rationalisation
of the browse list pattern to be done at some point.

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