Migrate from mkdocs

The current documentation was built using Material for mkdocs since the maintainer has announced that they will be moving on from the mkdocs dependency. Builds now have an error message:

 │  ⚠  Warning from the Material for MkDocs team
 │
 │  MkDocs 2.0, the underlying framework of Material for MkDocs,
 │  will introduce backward-incompatible changes, including:
 │
 │  × All plugins will stop working – the plugin system has been removed
 │  × All theme overrides will break – the theming system has been rewritten
 │  × No migration path exists – existing projects cannot be upgraded
 │  × Closed contribution model – community members can't report bugs
 │  × Currently unlicensed – unsuitable for production use
 │
 │  Our full analysis:
 │
 │  https://squidfunk.github.io/mkdocs-material/blog/2026/02/18/mkdocs-2.0/

We need to evaluate new options to migrate and report on the best one. Potential options:

• Hugo Theme
• Jekyll Theme
• Zensical