Add UI option to enable proxy cache referrer API

[stonezdj]

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Comprehensive Summary of your change

Issue being fixed

Fixes #(issue)

Please indicate you've done the following:

• Well Written Title and Summary of the PR
• Label the PR as needed. "release-note/ignore-for-release, release-note/new-feature, release-note/update, release-note/enhancement, release-note/community, release-note/breaking-change, release-note/docs, release-note/infra, release-note/deprecation"
• Accepted the DCO. Commits without the DCO will delay acceptance.
• Made sure tests are passing and test coverage is added if needed.
• Considered the docs impact and opened a new docs issue or PR with docs changes if needed in website repository.

[codecov]

Codecov Report

❌ Patch coverage is 60.00000% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 65.87%. Comparing base (c8c11b4) to head (355bb77).
⚠️ Report is 694 commits behind head on main.

Files with missing lines	Patch %	Lines
...rojects/create-project/create-project.component.ts	0.00%	0 Missing and 1 partial ⚠️
...t-policy-config/project-policy-config.component.ts	66.66%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main   #22767       +/-   ##
===========================================
+ Coverage   45.36%   65.87%   +20.50%     
===========================================
  Files         244     1074      +830     
  Lines       13333   116378   +103045     
  Branches     2719     2934      +215     
===========================================
+ Hits         6049    76659    +70610     
- Misses       6983    35473    +28490     
- Partials      301     4246     +3945     

Flag	Coverage Δ
unittests	65.87% <60.00%> (+20.50%)	⬆️

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

Files with missing lines	Coverage Δ
src/portal/src/app/base/project/project.ts	100.00% <100.00%> (ø)
...rojects/create-project/create-project.component.ts	47.71% <0.00%> (-2.71%)	⬇️
...t-policy-config/project-policy-config.component.ts	52.80% <66.66%> (+4.05%)	⬆️

... and 986 files with indirect coverage changes

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[stonezdj]

[wy65701436]

lgtm

[bupd]

May i know why is this merged while the proposal is still unmerged - goharbor/community#270

[Vad1mo]

agree

[OrlinVasilev]

If proposal is not merged and agreed on, we have remove that, Let's follow the governance!!!
@stonezdj please fix that!