The sort and filter UI of the video gallery was not working, this fixes that
issue, and also adds a new UI for filering videos that allows filtering videos
to include more than one status.
It also fixes the hooks related to VideoGallery to avoid potential bugs in the
future and updates tests to use react testing library instead of enzyme.
It also reduces the padding in gallery page.
The SelectImageModal component has been refactored so that it can also be used on the video selection page; and all its child components.
Now this component is called SelectionModal and is used both for the image selector and in this new video selection screen.
The assets api has been used to get the videos.
