LJ-507 Support setting publisher country code in Consent Settings

[erosselli]

Closes LJ-507

Description Of Changes

This adds a new Publisher Settings section under our Settings > Consent page, with a select input for Publisher country. We also make a small backend change to allow sending null values in our PATCH /config endpoint, to allow clearing the publisher country selection.

Code Changes

• Moved some endpoints / mutations / selectors from privacy-requests.slice.ts to the new file config-settings.slice.ts since they weren't related to privacy requests. For ease of review, this can be seen by looking only at 44976e2
• Added the new PublisherSettings.tsx component and used it in the consent.tsx page
• Added cypress tests for the new section

Steps to Confirm

1. Run fidesplus main with TCF enabled
2. Go to Settings > Consent in the admin UI. You should see the Publisher country select
3. Select a country and click "Save". Refresh the page, you should still see your selected country.
4. Change the country to something else and click "Save". Refresh the page, you should see the new country selected.
5. Clear the selection and click "Save". Refresh the page, you should see no country selected.

Screen recording

Screen.Recording.2025-03-18.at.4.09.34.PM.mov

Pre-Merge Checklist

• Issue requirements met
• All CI pipelines succeeded
• CHANGELOG.md updated
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• Followup issues:
  • Followup issues created (include link)
  • No followup issues
• Database migrations:
  • Ensure that your downrev is up to date with the latest revision on main
  • Ensure that your downgrade() migration is correct and works
    • If a downgrade migration is not possible for this change, please call this out in the PR description!
  • No migrations
• Documentation:
  • Documentation complete, PR opened in fidesdocs
  • Documentation issue created in fidesdocs
  • If there are any new client scopes created as part of the pull request, remember to update public-facing documentation that references our scope registry
  • No documentation updates required

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Name	Status	Preview	Comments	Updated (UTC)
fides-plus-nightly	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Mar 20, 2025 7:13pm
fides-privacy-center	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Mar 20, 2025 7:13pm

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.01%. Comparing base (aee8f5b) to head (5adb85c).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5902      +/-   ##
==========================================
+ Coverage   86.69%   87.01%   +0.31%     
==========================================
  Files         412      412              
  Lines       25451    25451              
  Branches     2750     2750              
==========================================
+ Hits        22066    22147      +81     
+ Misses       2798     2710      -88     
- Partials      587      594       +7     

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[adamsachs]

👍 BE looks good to me, thanks for taking the time/effort to make the endpoint better!

[lucanovera]

Great work on the FE 💯 . Tested it and it's working correctly. Code changes look good. Approved!