Add support for Pascal Neis' Changeset Visualization app

[mxxcon]

I'm submitting a feature request

Brief Description

Please add Changeset Visualization by Pascal Neis to the "Open With" dropdown menu.

What is the motivation / use case for this feature?

This app can display diffs of bboxes that are usually too large for OSMCha or Achavi to display. For example https://resultmaps.neis-one.org/osm-change-viz?c=143049029