Change downloaded videos sorting.

[Dv5n]

Describe your suggested feature

I have a lot of downloaded videos on LibreTube. But if I need to watch the most newest video I have to scroll to the bottom.

Other details

I think to sort the videos, so that the most newest downloaded video will be at the top and the first to be at the bottom.

Acknowledgements

• [X] I have searched the existing issues and this is a new ticket, NOT a duplicate or related to another open issue.
• [X] I have written a short but informative title.
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