fix: adding null value to job_description employment_type values

[pandalow]

fix: adding null value to job_description employment_type values

[Copilot]

Pull Request Overview

This PR adds null value support to the company and employment_type fields in the JobDescription model, allowing these fields to be optional rather than required.

• Added null=True, blank=True parameters to company and employment_type fields
• Generated corresponding Django migration to apply the database schema changes

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
backend/applyday/application/models.py	Modified JobDescription model to make company and employment_type fields optional
backend/applyday/application/migrations/0005_alter_jobdescription_company_and_more.py	Django migration file to alter database schema for the modified fields

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