Change project image ratio to 1:1
Adding an image with another ratio than 1:1 changes the size of the projects line in the exploration page:
![image](data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==)
The same happens in the projects page:
![image](data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==)
Automatically cropping the image to a 1:1 ratio when uploading it prevents this from happening.