fix(ui): unblock promotions when promotion directives are used

[Marvin9]

fixes #2587

[netlify]

✅ Deploy Preview for docs-kargo-akuity-io ready!

Name	Link
🔨 Latest commit	8c38998
🔍 Latest deploy log	https://app.netlify.com/sites/docs-kargo-akuity-io/deploys/66f7582113ba380008c74e39
😎 Deploy Preview	https://deploy-preview-2592.kargo.akuity.io
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 51.10%. Comparing base (16e4674) to head (8c38998).
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2592   +/-   ##
=======================================
  Coverage   51.10%   51.10%           
=======================================
  Files         282      282           
  Lines       20945    20945           
=======================================
  Hits        10703    10703           
  Misses       9578     9578           
  Partials      664      664           

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

[krancour]

🔥 Thank you @Marvin9!