Allow swiping to next video

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**Is your feature request related to a problem? Please describe.**
Currently, when having multiple videos in a folder, you can't swipe to the next or previous video. You have to close the video, find the position of the previously watched video and then click on the next / previous video.

**Describe the solution you'd like**
Just like with images, I'd like to be able to swipe left/right to watch the previous/next video.

**Describe alternatives you've considered**
Like mentioned above, I could simply close the video and click on another video in the list.