Follow-up from "Add new duo pro discover page"

The following discussions from !154478 (merged) should be addressed:

• @dstull started a discussion:

  suggestion (non-blocking):

  This isn't really a licensed feature...more like a saas feature, but we can be general here and it might fit better

      context 'when the `subscriptions_trials` feature is not available' do

• @dstull started a discussion:

  issue (non-blocking):

  This is probably just re-doing the first one at this point since we only have one on the page currently.