fix: release-4.18: enable Delete ApplicationSet (and Apps) for namespace-scoped users (#10780)

[keithchong]

See GITOPS-10780, but this is for the release-4.18 branch. See also #287

[coderabbitai]

Important

Review skipped

Auto reviews are disabled on base/target branches other than the default branch.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Team

Run ID: f95aabf4-1f2d-4be7-8f22-2f5fc6b4d72d

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

---

_{Comment @coderabbitai help to get the list of available commands.}

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (release-4.18@146f97e). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff               @@
##             release-4.18     #289   +/-   ##
===============================================
  Coverage                ?   12.44%           
===============================================
  Files                   ?      171           
  Lines                   ?     6836           
  Branches                ?     2247           
===============================================
  Hits                    ?      851           
  Misses                  ?     5984           
  Partials                ?        1           

Flag	Coverage Δ
unit-tests	12.44% <ø> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[aali309]

LGTM, same as #287

[keithchong]

Thanks Atif for the review