change icon or badge (to draw attention) on error

[WofWca]

For example, like this

For example, when the element's source is cross-origin

https://github.com/WofWca/jumpcutter/blob/7763cd8174f0bda34b75d5f46f0c9d556382a790/src/entry-points/content/AllMediaElementsController.ts#L433