ActionRenderer with UITransition Demo

UITransition Integration: ActionRenderer wraps all content in UITransition for smooth state changes
Size Adaptation: Container can smoothly animate to accommodate different content sizes (when enabled)
Optional Size Transitions: Toggle between instant and animated size changes using the "Enable Size Transitions" checkbox
Content Phases: Loading and error states are marked with data-content-phase
Content Keys: Each content type has a unique{" "} data-content-key for transition tracking
Stay Loading: The "Stay Loading" button demonstrates persistent loading states that never complete

This demo showcases how ActionRenderer uses UITransition to smoothly animate between different action states (idle, loading, completed, error) with different content sizes. You can control whether size changes are animated or instant, and customize the duration of all transitions.