Add Job Data fields to bulk edit

### Is your feature request related to a problem? Please describe
If you have to update Job Data on multiple job listings, it can only be done one by one as the Job Data fields are not available in Bulk Edit:

This can be time-consuming if you have a lot of jobs.

### Describe the solution you'd like
Add the Job Data fields (Location, Company Name, Expiry date etc.) to bulk edit, so they can be updated all at once.

### Additional context
Requested in 6328467-zen

The issue names no files or tests. Start by locating the WordPress admin bulk-edit entry point and the existing Job Data fields, then trace how bulk updates are handled. Done means Location, Company Name, Expiry date, and the other Job Data fields can be updated across multiple selected job listings.

Written by the indexing model from the issue text.