Update ORM VS Data Models for UI

# 💡 Summary #

As part of our ongoing efforts to enhance the user interface (UI), we need to update the ORM data models associated with the Web Application Scan (WAS) and Vulnerability Scan (VS) functionalities. These updates will ensure seamless integration with the new UI components.

## Motivation and context ##

This is a required metric for the dashboard.

## Implementation notes ##

- Identify any fields or relationships that need modification to align with the updated UI requirements Issued in [Design WAS and VS Graph(s)](https://github.com/cisagov/XFD/issues/172)
- Make necessary adjustments to the data model.

## Acceptance criteria ##

How do we know when this work is done?

- [ ] The updated data models are compatible with the new UI design.
- [ ] All relevant fields and relationships are accurately reflected in the ORM.

Start by reading issue #172, “Design WAS and VS Graph(s),” then locate the ORM models for Web Application Scan and Vulnerability Scan. Compare their fields and relationships with the updated UI requirements; done means the models accurately support the design and the dashboard metric.

Written by the indexing model from the issue text.