Modify container registry project settings section with feature flag

What does this MR do and why?

Modify container registry project settings section with feature flag

Updates components to render card layout based on feature flag.

Also tweaking container registry cleanup policy temporarily so that it can be completed in Update the container registry cleanup setting t... (#503389 - closed)

Changelog is not required since these changes are under a feature flag.

Note: Since this MR is quite big already, changes are focused only on the Container registry section. Package registry section is being updated in Modify package registry project settings sectio... (!175357 - merged)

References

Please include cross links to any resources that are relevant to this MR. This will give reviewers and future readers helpful context to give an efficient review of the changes introduced.

• Design: #500217[settings-expanded.png]
• We intend to update the container registry cleanup policy separately as part of #503389 (closed)

MR acceptance checklist

Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

Screenshots or screen recordings

Screenshots are required for UI changes, and strongly recommended for all other merge requests.

With feature flag turned off	Before	After: with cleanup policy disabled	After: with cleanup policy enabled	After: with protected container rules

How to set up and validate locally

1. Setup container registry

2. Visit Project > Settings > Packages and registries.

3. In rails console enable the experiment fully

   Feature.enable(:reorganize_project_level_registry_settings)

4. To view protected containers, enable the feature flag container_registry_protected_containers

5. Confirm that Container registry section looks like the one in screenshot & the settings are usable.

Related to #500217 (closed)

changed milestone to %17.8

added Category:Container Registry Category:Package Registry Category:Virtual Registry Deliverable Package:P1 Technical Writing UI text UX automation:ml automation:self-triage-encouraged devopspackage featureenhancement frontend frontend-weight3 groupcontainer registry sectionci typefeature workflowin dev labels

assigned to @rchanila

added pipelinetier-1 label

	3 Warnings
⚠️	This merge request is quite big (1001 lines changed), please consider splitting it into multiple merge requests.
⚠️	featureaddition and featureenhancement merge requests normally have a documentation change. Consider adding a documentation update or confirming the documentation plan with the Technical Writer counterpart. For more information, see: The Handbook page on merge request types. The definition of done documentation.
⚠️	This merge request contains lines with testid selectors. Please ensure e2e:test-on-omnibus job is run.

	1 Message
📖	CHANGELOG missing: If this merge request needs a changelog entry, add the Changelog trailer to the commit message you want to add to the changelog. If this merge request doesn't need a CHANGELOG entry, feel free to ignore this message.

testid selectors

The following changed lines in this MR contain testid selectors:

app/assets/javascripts/packages_and_registries/settings/project/components/container_expiration_policy.vue

+  <gl-card v-if="featureFlagEnabled" data-testid="container-expiration-policy-project-settings">
+          data-testid="rules-button"
+      <p class="gl-text-subtle" data-testid="description">
+      <p v-if="!isCleanupEnabled" data-testid="empty-cleanup-policy" class="gl-mb-0 gl-text-subtle">

app/assets/javascripts/packages_and_registries/settings/project/components/container_protection_rules.vue

+    data-testid="project-container-repository-protection-rules-settings"
+          data-testid="description"
+              data-testid="push-access-select"
+              data-testid="delete-btn"

If the e2e:test-on-omnibus job in the qa stage has run automatically, please ensure the tests are passing. If the job has not run, please start the manual:e2e-test-pipeline-generate job in the prepare stage and ensure the tests in follow-up:e2e:test-on-omnibus-ee pipeline are passing.

For the list of known failures please refer to the latest pipeline triage issue.

If your changes are under a feature flag, please check our Testing with feature flags documentation for instructions.

Reviewer roulette

Category	Reviewer	Maintainer
frontend	@jrushford (UTC+1, 10 hours behind author)	@jerasmus (UTC+1, 10 hours behind author)

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mentioned in merge request !175357 (merged)

added 1 commit

• 8d0b138c - Modify container registry project settings section with feature flag

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