[INT-6504] ATS Workday Background Check T2 Doc Improvements

[sourabh-stackone]

Context

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Summary by cubic

Rewrote the Workday Background Check doc to focus on sending invites and checking results in Workday. This streamlines the flow and removes setup noise, aligning with INT-6504.

• Refactors
  • Removed setup sections (statuses, packages, business process/document delivery).
  • Simplified candidate flow: apply to job, move to Background Check, send invite, verify status, view results.
  • Added an accordion on finding/creating job requisitions in a Supervisory Organisation, with updated screenshots.
  • Updated page title/description and copy for clarity with shorter steps.

[Copilot]

Pull Request Overview

This PR streamlines the Workday Background Check documentation by removing detailed setup instructions and focusing on the actual background check process for candidates. The changes transform the guide from a comprehensive configuration manual to a focused workflow guide for managing background checks.

• Removed complex configuration sections for background check statuses, packages, and business processes
• Simplified candidate job application process with clearer step-by-step instructions
• Streamlined background check invitation and verification procedures

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[jerann]

Really excellent work here @sourabh-stackone