Allow user to add videos to stories via URL

[SteAllan]

Currently, the YouTube story requires the user to enter the ID to add the URL to the story. This requires the user to extract the ID from the video URL. It would be a simpler experience for the user to allow them to simply use the video URL to add the video.

[SteAllan]

On the video story, allow the user to add the video URL instead of just the ID