Sets or gets the file location of the current video.
Setting src changes the displayed video to
the video found at the new src value.
Getting src returns the location of the
current video file.
The video file is one of the following:
wix:video://v1//#posterUri=&posterWidth=&posterHeight=https://www.site.com/video-pathhttp(s)://site.com/video-file.mp4