[Bug]: Embed Youtube video is not clickable on touch screens
### What happened?

https://tldraw.dev/examples/basic/basic

I import a Youtube embed in the demo of the link on a iPhone Chrome browser. The embed Youtube video is not clickable. Cannot start plaing the video.

### How can we reproduce the bug?

https://tldraw.dev/examples/basic/basic

Import a embed Youtube video on a touch screen.

### What browsers are you seeing the problem on?

_No response_

### Where did this happen?

The tldraw.dev website

### Contact Details

sjtuwbh@gmail.com

### Code of Conduct

- [x] I agree to follow this project's Code of Conduct