Hello @zerotoone.de,
Currently, your content section is fullwidth and container is 88% width.
To do the same on footer, edit Bar set content width to 88% too:
Technically, that will make it aligned on the container. But if you expect the content images left and right part to be aligned on the edge of footer content, that will not happened right now. This is because the content row ialignment is set to center. Your images is center while the footer is just taking the full 88% width.
Hope this helps