Investigate Next.js hydration error diff indicator

Currently we display React hydration errors depending on the environment, for production we send the minified error and that gets unfolded based on the error code to a hydration error on ingest side of things.

Next.js 16.2 [released a hydration diff indicator](https://nextjs.org/blog/next-16-2#hydration-diff-indicator), which is worth investigating and see if we can also do that for hydration errors by displaying the diff node.