[Bug]: Embed icons are not loaded from cdn when tldraw is hosted on a server having coep headers
### What happened?

I hosted tldraw on a server having COEP headers. The images in "Insert embeded" menu are not displayed and there are errors in the console:
`GET https://cdn.tldraw.com/3.3.1/embed-icons/figma.png net::ERR_BLOCKED_BY_RESPONSE.NotSameOriginAfterDefaultedToSameOriginByCoep 200 (OK)`

It is ok for other assets.

### How can we reproduce the bug?

Add COEP headers in vite.config.ts

```
export default defineConfig({
	server: {
		headers: {
			'Cross-Origin-Embedder-Policy': 'require-corp',
			'Cross-Origin-Opener-Policy': 'same-origin'
		}
	},
}
```
Open tldraw.
The embeded icons are not loaded.

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

Chrome

### Where did this happen?

The developer package

### Contact Details

### Code of Conduct

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