Add deep links from changelog entries to associated feedback posts

Description: As a user who arrives at the changelog from an email, I want each referenced changelog entry to include a direct link to its associated feedback/idea post so I can quickly view the underlying discussion and contribute without extra navigation. Problem: Clicking from the email currently lands users on a generic changelog list with no direct path to the specific feedback posts referenced. This breaks the expected flow, creates confusion, and forces users to hunt for the related idea, increasing friction and drop-off. Benefit: Adding clear, per-entry deep links from the changelog to the corresponding feedback posts reduces navigation steps, clarifies context, and improves engagement with the underlying ideas. Users can move from update to discussion in one click, improving discoverability and closing the loop between released changes and community feedback.