Bump nglview from 3.1.4 to 4.0

Bumps [nglview](https://github.com/arose/nglview) from 3.1.4 to 4.0.
- [Release notes](https://github.com/arose/nglview/releases)
- [Changelog](https://github.com/nglviewer/nglview/blob/master/CHANGELOG.md)
- [Commits](nglviewer/nglview@v3.1.4...v4.0)

---
updated-dependencies:
- dependency-name: nglview
  dependency-version: '4.0'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements.txt

@@ -15,7 +15,7 @@ gpaw==24.6.0
 hyperspy==2.2.0
 jupyter-server-proxy==4.4.0
 nbgitpuller==1.2.2
-nglview==3.1.4
+nglview==4.0
 pystem==0.0.26
 python-ace==0.3.1
 pyvista==0.44.2