[Improved, Fixed] Hotfix: accurate Indeed source handling

Improvements

• Disabling Indeed Apply for a branch now immediately expires that branch’s live postings and cleanly detaches the source, giving recruiters an accurate, up-to-date job list.
• The “expire postings” action is now branch-scoped, ensuring that only the selected branch’s jobs are affected and preventing accidental org-wide expirations.

Fixes

• Renaming an Indeed source for one branch no longer alters another branch’s source, so job postings always show the correct company name and continue to receive sponsorship traffic.