Setup Duo Landing Page

Context

We need to restructure the Duo Settings LP to match the Figma Designs. We also need to refactor Seat Utilization to be it's own page and build out the Configuration box for it on the LP.

Scope of this issue

• Create Duo LP (and associated Route for Groups & Admin)
• Add associated components for Self-Managed and SaaS:
  • Configuration Box (SM + SaaS) -- In Issue: #493382 (closed)
• Separate out Seat Utilization to it's own Page (update associated Route)