Sets up a MutationObserver to monitor when a specific DOM element (e.g., a div container) is removed from the document.
When the element is removed, it triggers a cleanup callback and disconnects the observer to prevent memory leaks.
A unique identifier for the element, used to manage observer references
The DOM element to monitor for removal from the DOM tree
The callback executed once the given DOM element gets removed from the DOM tree
Sets up a MutationObserver to monitor when a specific DOM element (e.g., a div container) is removed from the document.
When the element is removed, it triggers a cleanup callback and disconnects the observer to prevent memory leaks.