[JENKINS-73969] [JENKINS-73970] Remove inline JavaScript to become CSP compliant

[mawinter69]

use checkDependsOn for checkUrl
move the script for UserRelevanceFilter to a separate js file and load as adjunct
fix that nameOptions were not hidden when when selecting a non name matcher in regex filter

Testing done

Manual Testing

Submitter checklist

• Make sure you are opening from a topic/feature/bugfix branch (right side) and not your main branch!
• Ensure that the pull request title represents the desired changelog entry
• Please describe what you did
• Link to relevant issues in GitHub or Jira
• Link to relevant pull requests, esp. upstream and downstream changes
• Ensure you have provided tests - that demonstrates feature works or fixes the issue

[basil]

Thank you very much!