- Updated IStep interface to include optional footerContent for step-specific actions.
- Implemented createAndShow static method for displaying stepper as an overlay with DeesWindowLayer.
- Refactored render method to wrap each step in a dees-tile, separating header, body, and footer content.
- Enhanced CSS for dual-mode operation, adjusting styles for overlay and inline modes.
- Added z-index management for overlay stepper to ensure proper stacking with window layer.
- Updated demo to include a button for launching the stepper as an overlay.
