- Removed the slot and property_slot classes, consolidating their functionality into a new modifier system.
- Introduced align_modifier, padding_modifier, and stretch_modifier to handle layout properties.
- Updated overlay and stack classes to utilize the new modifier system for layout management.
- Simplified event handling by integrating layout modifiers directly into the event target retrieval process.
- Removed unused includes and cleaned up code for better readability and maintainability.
nanako
74efe4e201