Bump prosemirror-view from 1.39.3 to 1.40.0

Bumps [prosemirror-view](https://github.com/prosemirror/prosemirror-view) from 1.39.3 to 1.40.0.
- [Changelog](https://github.com/ProseMirror/prosemirror-view/blob/master/CHANGELOG.md)
- [Commits](https://github.com/prosemirror/prosemirror-view/compare/1.39.3...1.40.0

)

---
updated-dependencies:
- dependency-name: prosemirror-view
  dependency-version: 1.40.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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