PM-14201: Update the default divider thickness

[david-livefront]

🎟️ Tracking

PM-14201

📔 Objective

This PR updates the default divider thickness across the app.

There should be no functional changes in this PR.

⏰ Reminders before review

• Contributor guidelines followed
• All formatters and local linters executed and passed
• Written new unit and / or integration tests where applicable
• Used internationalization (i18n) for all UI strings
• CI builds passed
• Communicated to DevOps any deployment requirements
• Updated any necessary documentation 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 ✅

Please upload report for BASE (main@05c7686). Learn more about missing BASE report.
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4182   +/-   ##
=======================================
  Coverage        ?   88.95%           
=======================================
  Files           ?      439           
  Lines           ?    38142           
  Branches        ?     5340           
=======================================
  Hits            ?    33930           
  Misses          ?     2347           
  Partials        ?     1865           

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[david-livefront]

Thanks @SaintPatrck