Future request: navigate between mismatches

[bostone]

Hopefully I didn't miss the obvious but it would be great to have either built-in means or hooks to navigate up and down mismatches. If there's a way plz point to the right direction

[rtfpessoa]

The only navigation we have is the links in the summary at the top.
If you are interested in contributing this, feel free to pot here a draft of your idea and then I can review the PR.