Bug: impossible to add alt text to the third and fourth photos in the post that is being created

## Environment:
 - OS: 
MacOS 26.2 (25C56)
 - IceCubesApp version:
 2.1.1

## Description

If you add four photos to a post, only the first two are accessible as it is not possible to scroll through them. This means that it is impossible to add alt text to the other two photos.

## Related Issues

I searched for the keywords 'mac' and 'photo', but couldn't find any related topics.