Diverse logo updates

Starting with DESY Logo, I stumbled over diverse non svg logos and a formatting issue (height not considered)

• replaced some svg logos
• adapted formatting slightly
• after adaptation, removed white spacers from several of the older logos

Review apps (scroll down):

• new version
• old version

marked this merge request as ready

changed the description

requested review from @frust45

@frust45 could you please check?

added Progress::4_Can review label

resolved all threads

approved this merge request

merged

mentioned in commit 805727b8