[devtools] fix: error overlay closes when footer is clicked (#80513)
https://github.com/vercel/next.js/pull/77327 should've added the footer to the dialog's click outside exclude list as is moving out from the dialog.
#### Before
https://github.com/user-attachments/assets/3ee79982-acc7-4783-b629-7132361463fd
#### After
https://github.com/user-attachments/assets/172e413d-5276-4dd5-a13c-936ba4bd5e6a