Use CD-correct canvas margins

This moves over to a non-whitespace'd version of the FZJ logo for this. I also fix most of the occurances of 0.5cm to 0.05\paperheight (which is the same for the 1610 aspectratio, but not for other ratios). The partner logo placements have been moved as well.

This is the last part of the re-implementation of merge request !7
1 job for fix--logo-margin-NEW