v0.6.6

What's Changed

• Update docs by @ElliottKasoar in #340
• Clean up test output by @ElliottKasoar in #342
• Make carbon tracking optional by @ElliottKasoar in #343
• Restructure helpers directory by @ElliottKasoar in #341
• Add lags to vafs by @oerc0122 in #318
• Add support for non-diagonal supercells by @RastislavTuranyi in #320
• Migrate to __future__.annotations by @oerc0122 in #347
• Update docstrings by @ElliottKasoar in #348
• Refactor phonons by @ElliottKasoar in #329
• Slight change to none_to_dict to avoid nesting brackets. by @oerc0122 in #349
• Add preprocessing training data by @ElliottKasoar in #344
• Save model info by @ElliottKasoar in #336
• Update MACE by @ElliottKasoar in #352
• Update ruff by @ElliottKasoar in #354
• Update README by @ElliottKasoar in #355

Full Changelog: v0.6.5...v0.6.6