Mezzanine Thumbnails appear all squished.

[Thore-Krug]

In recent Versions the Thumbnails of the Mezzanines appear squished.
The Thumbnail for the Vision Mezzanine is also rotated so it takes up more space than it needs.

Signed off by: Thore Krug

Please enter some details about the bug/issue so we can promptly resolve it.
URL: https://www.96b

oards.org/documentation/mezzanine/