Bugfix: Displaying full video in their dimensions

We've fixed a bug which set the video width and height to 100% of the screen size instead of the actual video size.
This bug made it impossible to see the full video in 1080x1920, while 1920x1080 might have been slightly cropped.

https://github.com/owncloud/web/issues/10010
https://github.com/owncloud/web/pull/10101
