call job on model

[bnomei]

• :sparkles: call method on model
• :wrench: ignore backupzips in test

[what-the-diff[bot]]

PR Summary

• New command for model methods Added a new command to call methods on models.
• Renaming content files Content files have been updated from home.* and test/* to use the default language code instead of hardcoded English (en). This allows for better compatibility with Kirby 3.4+ and supports multiple languages with different blueprints per page/file.
• Updated dependencies and documentation Composer dependencies have been updated, with new tests added and documentation revised accordingly.