Describe the bug
I use a headerline, EAF browser renders on top of it (you can just about see it poking out at the top right)

Also notice how the EAF window doesn't quite fill the window. Is there a way to fix this?

To Reproduce
Enable a headerline and start eaf-browser.

Expected behavior
Render below the headerline

Versions (please complete the following info):

• Distro and DE/WM: Custom
• Versions of Dependencies: Latest
• M-x emacs-version: 29-Master