[fix + refa] fix first line which was not collapsing + refa titleList management

assigned to @gaubilr

added 46 commits

• 7e8fd566...629dd8b6 - 45 commits from branch main
• 9d2e4ddf - Merge branch 'main' into 'timeline'

Compare with previous version

merged

mentioned in commit 7e52cc4e