Remove unused import

Bump pyvista and dolfinx to v0.7.2 (jorgensd#159)

* Bump pyvista and dolfinx to v0.7.2

* remove -r

* Add further pyvista deps

* Bump versions

Prepare v0.7.1 for releasing (jorgensd#155)

Minor QOL updates and build images with dolfinx v0.7.1

Update Dockerfile (jorgensd#153)

Pin docutils for jupyterbook (jorgensd#151)

* Pin docutils due to:  jupyter-book/jupyter-book#1970 (comment)

* Fix pin

Hack to launch jupyter-server (jorgensd#113)

* omit .git dir from image

* dockerfile cleanup: reduce size of repo with `COPY --chown`

COPY/RUN chown doubles the size of the repo in the image

also make sure NB_USER is not empty and present in system info

* hack: launch jupyter-server instead of jupyter-notebook

BinderHub forces a launch of the legacy jupyter-notebook server,
but our base image has upgraded jupyterlab and jupyter-server to a version that doesn't support it

the alternative would be to pin-down jupyter server and everything using it

Update docker publish context

Release version compatible with 0.5.0 (jorgensd#92)

* Bump version

* Try fixing weird formatting

* Try fixing pyvista ci

Update version to 0.4.0 (jorgensd#75)

* Update version to 0.4.0

* Update underlying docker images

Update robin_neumann_dirichlet.ipynb (jorgensd#40)