feat(org settings): adding suspense logic and harmonizing skeletons across all settings pages

[TheoGrandin74]

Summary

Suspense logic and skeletons harmonized for the following pages:

• Labels & annotations
• API tokens
• Git repositories access
• Helm repositories
• Container registries
• Cloud credentials

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

[RemiBonnet]

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Command	Blueprint environment
/qovery preview 15d69f24-9bc1-4a8d-80fe-d1bb1b2bcd00	New Navigation
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[codecov]

Codecov Report

❌ Patch coverage is 37.77778% with 56 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (new-navigation@cd3fed9). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
...labels-annotations/settings-labels-annotations.tsx	17.94%	30 Missing and 2 partials ⚠️
...s-helm-repositories/settings-helm-repositories.tsx	42.85%	7 Missing and 1 partial ⚠️
.../src/lib/settings-api-token/settings-api-token.tsx	66.66%	3 Missing and 2 partials ⚠️
...ainer-registries/settings-container-registries.tsx	58.33%	4 Missing and 1 partial ⚠️
...pository-access/settings-git-repository-access.tsx	42.85%	3 Missing and 1 partial ⚠️
...s/use-annotations-groups/use-annotations-groups.ts	0.00%	1 Missing ⚠️
...oks/use-helm-repositories/use-helm-repositories.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@                Coverage Diff                @@
##             new-navigation    #2418   +/-   ##
=================================================
  Coverage                  ?   45.19%           
=================================================
  Files                     ?      528           
  Lines                     ?    11736           
  Branches                  ?     3377           
=================================================
  Hits                      ?     5304           
  Misses                    ?     5542           
  Partials                  ?      890           

Flag	Coverage Δ
unittests	45.19% <37.77%> (?)

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