User profile picture broken when using Steam

[daniMilio]

If the profile picture selected is the one from ones steam account, the profile picture is broken in Admin page and the Users tab, where the users are listed.

The cause of this is the fact that in the picture object, there is a reference to the steam profile picture, but appended with ".webp". Steam does not provide a webp alternative of the profile picture.

The solution would be then to either download/cache the steam profile picture and then convert a local copy of it in webp-format or remove the webp reference when its a steam profile photo.