[PM-16102] Prevent item action height overflow

[vleague2]

🎟️ Tracking

PM-16102

📔 Objective

The :after height that was added in this ticket was just a little bit too tall for the item container, and was causing tiny scrollbars to appear on each item in Storybook. I was not able to reproduce in the extension. This PR reduces the height slightly to prevent it from overflowing the container in both regular and compact modes.

📸 Screenshots

Before:

Screen.Recording.2024-12-26.at.11.11.05.AM.mov

After:

Screen.Recording.2024-12-26.at.11.11.27.AM.mov

⏰ Reminders before review

• Contributor guidelines followed
• All formatters and local linters executed and passed
• Written new unit and / or integration tests where applicable
• Protected functional changes with optionality (feature flags)
• Used internationalization (i18n) for all UI strings
• CI builds passed
• Communicated to DevOps any deployment requirements
• Updated any necessary documentation (Confluence, contributing docs) or informed the documentation team

🦮 Reviewer guidelines

• 👍 (:+1:) or similar for great changes
• 📝 (:memo:) or ℹ️ (:information_source:) for notes or general info
• ❓ (:question:) for questions
• 🤔 (:thinking:) or 💭 (:thought_balloon:) for more open inquiry that's not quite a confirmed issue and could potentially benefit from discussion
• 🎨 (:art:) for suggestions / improvements
• ❌ (:x:) or ⚠️ (:warning:) for more significant problems or concerns needing attention
• 🌱 (:seedling:) or ♻️ (:recycle:) for future improvements or indications of technical debt
• ⛏ (:pick:) for minor or nitpick changes

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 33.79%. Comparing base (ef70f7d) to head (81fd475).
Report is 1 commits behind head on main.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #12588   +/-   ##
=======================================
  Coverage   33.78%   33.79%           
=======================================
  Files        2912     2912           
  Lines       90699    90699           
  Branches    17152    17152           
=======================================
+ Hits        30641    30648    +7     
+ Misses      57672    57665    -7     
  Partials     2386     2386           

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[github-actions]

Checkmarx One – Scan Summary & Details – 2ef2fa2b-7087-4e08-9304-178fc4b1d9d3

No New Or Fixed Issues Found