add directApply if url or email set for application

[masteradhoc]

Fixes #2201

Changes Proposed in this Pull Request

In 2021 i created a issue for the at that time new value Direct Apply. Idea is that now as soon as the application URL or email is filled out a true value could be passed to the structured data of JobPosting. If there is now application url or email set we will send false to the schema.

Testing Instructions

• Create a new job with no email or url set -> directApply value should be false
• Create a new job with email set -> directApply value should be true
• Create a new job with url set -> directApply value should be true

Test over https://search.google.com/test/rich-results

Release Notes

• add schema value directApply true if email or url is set at Application email / url field