fix(styles): update color references and improve UI consistency across components

[RemiBonnet]

Summary

Remove all old tokens and config tailwind

Screenshots / Recordings

Testing

• Changes tested locally in the relevant Console's pages and Storybooks
• yarn test or yarn test -u (if you need to regenerate snapshots)
• yarn format
• yarn lint

PR Checklist

• I followed naming, styling, and TypeScript rules (see .cursor/rules)
• I performed a self-review (diff inspected, dead code removed)
• I titled the PR using Conventional Commits with a scope when possible (e.g. feat(service): add new Terraform service) - required for semantic-release
• I only kept necessary comments, written in English (watch for useless AI comments)
• I involved a designer to validate UI changes if I am not a designer
• I covered new business logic with tests (unit)
• I confirmed CI is green (Codecov red can be accepted)
• I reviewed and executed locally any AI-assisted code

[codecov]

Codecov Report

❌ Patch coverage is 25.00000% with 9 lines in your changes missing coverage. Please review.
✅ Project coverage is 44.53%. Comparing base (b3b67ea) to head (c055aaf).
⚠️ Report is 1 commits behind head on new-navigation.

Files with missing lines	Patch %	Lines
...bility/feature/src/lib/local-chart/local-chart.tsx	0.00%	2 Missing ⚠️
...lib/components/navigation-left/navigation-left.tsx	0.00%	2 Missing ⚠️
...rd/instance-status-chart/instance-status-chart.tsx	0.00%	1 Missing ⚠️
...boarding/feature/src/lib/step-plans/step-plans.tsx	0.00%	1 Missing ⚠️
.../lib/sidebar-pod-statuses/sidebar-pod-statuses.tsx	0.00%	1 Missing ⚠️
...i/src/lib/components/table/table-row/table-row.tsx	50.00%	0 Missing and 1 partial ⚠️
...ared/ui/src/lib/components/table/table.stories.tsx	0.00%	1 Missing ⚠️

Additional details and impacted files

@@                Coverage Diff                 @@
##           new-navigation    #2638      +/-   ##
==================================================
- Coverage           45.03%   44.53%   -0.50%     
==================================================
  Files                1135     1076      -59     
  Lines               23836    22838     -998     
  Branches             6923     6657     -266     
==================================================
- Hits                10734    10171     -563     
+ Misses              11230    10905     -325     
+ Partials             1872     1762     -110     

Flag	Coverage Δ
unittests	44.53% <25.00%> (-0.50%)	⬇️

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[rmnbrd]

Looks like we have issue with the borders of TabBars