Fix incorrect plotting of zone axes labels of geometrical simulations

[hakonanes]

Description of the change

Fix #541 and bump release version to 0.6.1 for a patch release. A config file for Binder is added, but it won't be possible to run PyVista on Binder yet (see #543).

I'll release this right away.

Progress of the PR

• [n/] Docstrings for all functions
• [n/a] Unit tests with pytest for all lines
• [n/a] Clean code style by running black via pre-commit

For reviewers

• The PR title is short, concise, and will make sense 1 year later.
• New functions are imported in corresponding __init__.py.
• New features, API changes, and deprecations are mentioned in the unreleased
  section in CHANGELOG.rst.
• New contributors are added to .all-contributorsrc and the table is regenerated.

[hakonanes]

Can't seem to get numcodecs installed properly on macOS with Python 3.10. That shouldn't stop this release though, so hopefully that will be solved upstream.