Add screenshots to reports

[zcrt]

About this feature

The boefje kat_webpage_capture creates screenshots of webpages. It would be nice to also show the latest screenshots of a webpage in an aggregated report.

Detailed description

This feature will give the end user a better feeling about the systems the report is about. In addition it provides support for historical insights when multiple reports are available.

Design

This part should only be filled in by the OpenKAT design team.

Screenshots

Include screenshots of the proposed design changes here.

Figma link

Link to the Figma design for further visualization (if applicable)

Implementation

This part should only be filled in by the developers.