Count of children items

🌟Features
1

Add option to display children count, so for example:

So something like this:
L1

  • L2 (2)
    • a
    • b

Or if we had checkboxes something like this:

L1

  • L2 (1/2)
    • a
    • b (checked item)

Andy

2

Displaying child count like “L2 (1/2)” adds clarity, especially with checkboxes. It helps users quickly see progress or selection status in nested lists.