This is a maintenance release. No user-visible changes have been made. This
release tests the new system to keep alignment with plugin template via
Cruft (thanks to Justin Meyer for the changes).

Ensure plugin is included in sdist build

Maintainance release (no user visible changes)

• Add acknowledgments to Lucas Cimon and Christian Clauss
• Update list of Copyright years

Code improvement (no user visible changes)

Maintainance release (no user visible changes)

• Add Python 3.12 to CI test matrix
• Switch build system from Hatchling to PDM

Update list of years in Copyright notices

• Improve docstrings
• Migrate to the new standard tooling

Update list of years in Copyright notices

Get the correct URL of Gravatar images (this fixes issue #11)

Maintenance release:

• Add acknowledgment to Justin Mayer
• Use full URL for the figure in the documentation