feat(eks-anywhere): add cluster backup configuration and hide extra tags

[pggb25]

Summary

Add backup configuration support for EKS Anywhere clusters

Hide Extra tags section for PARTIALLY_MANAGED (EKS Anywhere) clusters in both creation flow and cluster settings

http://localhost:4200/organization/148bff50-453d-4111-8353-915bd6ec08b3/cluster/eb77465e-a1b2-4c62-aa1c-89db4cac8bc3/overview **Issue**:

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 47.61905% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 45.59%. Comparing base (ed785f4) to head (0554530).
⚠️ Report is 9 commits behind head on new-navigation.

Files with missing lines	Patch %	Lines
.../lib/cluster-eks-settings/cluster-eks-settings.tsx	50.00%	7 Missing and 1 partial ⚠️
...on-flow/step-summary/step-summary-presentation.tsx	50.00%	1 Missing and 1 partial ⚠️
...luster-creation-flow/step-general/step-general.tsx	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@                Coverage Diff                 @@
##           new-navigation    #2590      +/-   ##
==================================================
+ Coverage           45.28%   45.59%   +0.31%     
==================================================
  Files                1119     1122       +3     
  Lines               22820    22989     +169     
  Branches             6666     6715      +49     
==================================================
+ Hits                10333    10482     +149     
+ Misses              10623    10605      -18     
- Partials             1864     1902      +38     

Flag	Coverage Δ
unittests	45.59% <47.61%> (+0.31%)	⬆️

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