CE-2399: Use correct heading accordion

Closes CE-2399

requested review from @christinajenks, @domonkosgulyas, and @imretoth

assigned to @johannaszepanski

approved this merge request

approved this merge request

added 3 commits

• 9aaef66d...3fb9a6e5 - 2 commits from branch develop
• 2b50c42e - fixed merge conflict

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added 1 commit

• 14883a62 - updated to ess-common published version

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approved this merge request

mentioned in commit 5e07b957

merged