:bug: CIfplayer is not working correctly.

[luckylionheart]

Now I am adding CIFPlayer in svelte-spectre. But after add cifplayer as iframe in svelte-spectre, I found a issue while drag and drop atoms and molecules.

https://screenrec.com/share/wQAEIfR67O

Maybe ondrag event is wrong.

[luckylionheart]

I catch why it works wrong.