Posibility to add a Image to the new Modal Panel's header

As the title already explains it completely there is only a little further to add.

I think the modal panels are a super great addition to Discord and can be used in super cool ways by bot developers. To improve users experience even more, it should be possible to add a centered header at the top of the modal (the image should have dimensions defined by Discord in order to display it perfectly on every platform).

The only use-case I can think of now, is when differentiating user-bots (bad scam bots) from users. Imagine the modal with a captcha (as a image) in the header and a textfield at the bottom. There would be no need to apply for the "MESSAGE CONTENT INTENT" as it would not be required to check the content of the message, more like the content of the textfield.
 
I hope you get what I am saying.

Lastly, keep up the great work Discord. You are awesome <3