v0.0.6

Better handling of notebooks, refactoring, plots and more!

Changelog of this release:

• Add notebook with checkpointing, logging, testing and more and relative bugfixes + feats #83
• Refactor env embeddings into init, context and dynamic
• OP plotting
• PCTSP plotting
• Quickfix Lightning problem: Lightning-AI/pytorch-lightning#18022
• Quickfix docs
• Misc

Full Changelog: v0.0.5...v0.0.6