Fix layout of the cards on the guidelines page

See https://hifis-review-app.hzdr.de/review-apps/hifis-hifis-net/fix-guidelines/guidelines

added 5 commits

• 50b70ed7...8084db3a - 4 commits from branch hifis-unified-step-1-after-vc-20210317
• 80ac1703 - Fix layout of the cards on the guidelines page

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changed the description

requested review from @jandt-desy

mentioned in commit 0b3142aa

merged