fix favorite test

[mawinter69]

adjust to new layout for favorites

Testing done

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6. Ensure you have provided tests - that demonstrates feature works or fixes the issue

[NotMyFault]

Thanks for the PR, but the tests are failing still: https://ci.jenkins.io/job/Core/job/acceptance-test-harness/job/PR-1442/1/testReport/plugins/FavoriteTest/latest_linux_jdk21_firefox_split9___shouldBeAbleToFavoriteAJob/

[mawinter69]

Tests are good now, remaining failures are unrelated to Favorite plugin

[NotMyFault]

Thanks!