Fixed additional partial application updates

[sc-ivanlieckens]

Description / Motivation

Fixes other parts of Application form to submit full application instead of partial with empty values

API Client can't determine whether null is desirable to pass or to ignore so must pass full application atm to prevent data loss due to values being reset as null values are passed down to the API

How Has This Been Tested?

Manual Testing

Local Docker Setup

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have read the Contributing guide.
• My code/comments/docs fully adhere to the Code of Conduct.
• My change is a code change.
• My change is a documentation change and there are NO other updates required.