refactor: [BD-46] Revision of Core design token

[PKulkoRaccoonGang]

Description

• The SCSS variables of the core directory were checked
• Added/corrected design tokens relative for core directory

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.68%. Comparing base (146897a) to head (7b5369d).
Report is 404 commits behind head on alpha.

Additional details and impacted files

@@           Coverage Diff           @@
##            alpha    #3048   +/-   ##
=======================================
  Coverage   93.68%   93.68%           
=======================================
  Files         229      229           
  Lines        3740     3740           
  Branches      899      899           
=======================================
  Hits         3504     3504           
  Misses        231      231           
  Partials        5        5           

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[PKulkoRaccoonGang]

@brian-smith-tcril after merging the updated alpha branch, only the last commit remains in this PR

[brian-smith-tcril]

This diff is so large my browser is freezing when viewing the files changed, but since most of the changes are from the merge, I decided to just review:

• 4c3e893
• 42b1ff6
• 00af3cf

and they all LGTM! Thank you so much for this!

[openedx-semantic-release-bot]

🎉 This PR is included in version 23.0.0-alpha.2 🎉

The release is available on:

• npm package (@alpha dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[openedx-semantic-release-bot]

🎉 This PR is included in version 23.0.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀