How to add an icon field to header navigation items?

Forgive me for the newbie question, I'm a little overwhelmed after setting up PayloadCMS v3 and selecting the website template option.

Usually I'd use ChatGPT to guide me, but it's really not up to scratch when it comes to the current state of the beta. So, I'm here, asking the simple question of:

I want to have icons for my menu items. How do I add that to the admin under the Header section?