Pull Request resolves #47675

• I read the Generative AI policy and my contribution is either not created with the help of AI or is compatible with the policy and GNU/GPL 2 or later.

Summary of Changes

Fixed the isNested variable to properly handle data-nested="false" attribute by converting the string value to a boolean.

Testing Instructions

1. Set data-nested="false" on a draggable table
2. Try to drag and drop rows
3. Verify that sorting works correctly
4. Test with data-nested="true" to ensure nesting still works

Actual result BEFORE applying this Pull Request

When data-nested="false" is set, drag-and-drop sorting does not work because the string "false" is treated as truthy in JavaScript, causing the condition if (isNested) to incorrectly evaluate to true.

Expected result AFTER applying this Pull Request

Both data-nested="true" and data-nested="false" work correctly. The fix explicitly converts the dataset string value to a boolean using isNested = container.dataset.nested === 'true';

Link to documentations

• No documentation changes for guide.joomla.org needed
• No documentation changes for manual.joomla.org needed