v0.4.0

0.4.0 - 2025-03-26

🚀 Features

• Singleton created via #[derive] now support dyn types
  • BREAKING: dyn types are now automatically wrapped in a Box: Box<dyn T>,
    which requires all users to now retrieve singletons using the new type: registry.get_singleton::<Box<dyn T>>

🐛 Bug Fixes

• Remove unused tests
• Fix singleton behavior with derive macro