Work item designs UI regressions

Overview

As a result of recent changes some UI elements in the work items design manager are now out of alignment or missing:

Description Image Change needed
Space between reactions and designs is too tight (4px) image Increase margin to 1rem
No collapse control image Re-add collapse/expand
Uneven space at top/bottom of design list body image Reduce total space at top to 1rem, currently 1.75px (1rem li margin-top, .75rem card padding); increase space at bottom to 1rem, currently .75rem (card padding)
Missing space between avatar and label in version dropdown image Add .5rem between

Example work item: https://gitlab.com/gitlab-org/plan-stage/okr-sandbox/-/work_items/729 (view as legacy issue)

Work items design management is currently behind a FF and not available to customers.