Added a plugin for the WYSIWYG editor that extracts nested lists from empty list items and merges them into the parent list. If a list item contains only a nested list, it is moved up and integrated into the structure. The document structure remains clean and readable, ensuring correct indentation and hierarchy.

Before & After Examples

Example 1: Empty List Item with Nested List

Before:

* * Nested item

after:

* Nested item

Example 2: Nested List Inside an Empty List Item with Additional Content

before:

* First item
* * Nested item
  Paragraph
  * Second item

after:

* First item
* Nested item
* Paragraph
  * Second item