WIP: Change from Category Vision Epic to Page

During the Product Team meeting we discussed a proposal to move stage vision pages to epics alongside category vision epics. We rejected that proposal but there was a counter proposal to move category vision epics to pages. This MR serves as a discussion point for that proposal.

PROS - We are misusing epics for this content, it allows us to have a better review cycle around them, @williamchia mentioned there is likely some SEO benefits CONS - Not dogfooding, content is less discoverable by customers and certainly less discussionable(sp)

Review App Link - Example Category Vision Page - Product Handbook