ToggleButton :   when label is empty

[navedqb]

Describe the bug

If you want to create a ToggleButton with an icon and no label (onLabel="" offLabel=""), the button will show the literal text  

Reproducer

https://stackblitz.com/edit/pd5f3h?file=src%2FApp.jsx

System Information

primereact: 10.8.4
react: 18.3.1

Steps to reproduce the behavior

No response

Expected behavior

When both onLabel and offLabel are empty, the button should render a non-breaking space instead of literal text, ensuring proper layout and spacing.