LazySizes unveilhooks plugin

LazySizes unveilhooks plugin is an extension for the LazySizes lazy loading library that adds event hooks for customizing unveiling behavior. It allows developers to execute custom JavaScript when elements are about to be loaded or after they have been revealed. The plugin provides callbacks for beforeunveil and afterunveil events, enabling integration with other scripts and libraries. unveilhooks is useful for triggering animations, loading additional resources, or tracking when specific elements become visible. It extends LazySizes' core lazy loading functionality with programmatic control over the loading lifecycle. The plugin maintains LazySizes' performance characteristics while adding flexibility for complex implementations. It is commonly used when lazy loading needs to coordinate with other interactive elements or analytics tracking.