UI still exists after cancelling the eyedropper mode with AbortController

[KaiHOtw-1010]

According to the spec, it should exit the eyedropper mode and dismiss UI if the user aborts color selection.
In the current implementation, the eyedropper UI still exists if user aborts the eyedropper mode with AbortController in code.
The user still needs to click to dismiss the eyedropper UI afterward.

Minimal reproducible example: https://developer.mozilla.org/en-US/docs/Web/API/EyeDropper#aborting_the_eyedropper_mode
As presented by the MDN web docs example above, the eyedropper UI remains after the timeout where the color selection is aborted with the AbortController signal.