Adjusting, cropping a profile picture, background image.

[eveneme]

Adding the ability to customize and crop both the profile picture and the background image.

[aethior]

This suggestion has also been discussed in the ideas and suggestions forum:

• Cover photo: https://www.woltlab.com/community/thread/266059-titelbild-positionieren/
• Avatar: https://www.woltlab.com/community/thread/292657-avatar-anpassung-w%C3%A4hrend-des-hochladens/