Preview of bounty details page

**Acceptance Criteria**
**Rendering Initiation**
GIVEN I am creating a bounty
WHEN I navigate to the last step "Review Bounty"
THEN I should see a rendering of what the bounties detail page would look like given the information have inputted on all previous steps
AND it should include the new design and new fields

**Product & Design Links:**

Start by tracing the bounty-creation flow to the final “Review Bounty” step and locating the existing bounties detail page. Compare the information collected in earlier steps with the requested new design and fields. Done means the review step renders a matching detail-page preview using the entered bounty information.

Written by the indexing model from the issue text.