Use an skeleton loader while loading the torrent description

[josecelano]

From: https://www.reddit.com/r/trackers/comments/18i8e09/comment/kdhsy3w/?utm_source=share&utm_medium=web2x&context=3

On the torrent list page when showing a "No description" message while we are loading the torrent description from the API:

We should use a skeleton loader. We should use them everywhere.