Setting offsets.text with empty will leave a empty line

### Is there an existing issue for this?

- [X] I have searched the existing issues

### What happened?

When I remove the offsets.text or set it with empty, I'll have a empty line at the side bar of neo-tree:


### What did you expect to happen?

No empty line when setting text with nil.

### Config

options = {
offsets = {
{
filetype = 'neo-tree',
-- text = nil,
highlight = 'Directory',
-- text_align = 'left',
},
},
}

### Additional Information

...

### commit

_No response_