Export findings e.g. to a pdf file

# Feature request

## Description

As an Auditor, I want to export the findings of CodeCharta into a pdf file.

## Acceptance criteria
- The following things are included:
- One Screenshot per added Custom View that is applicable,
- suspicious/inconsuspicious/untracked metrics,
- risk profile,
- worst files per metric (Copy filenames with highest metric values button)

No files, tests, or entry points are named. Start by locating the findings, Custom Views, metrics, risk profile, and worst-files UI in the TypeScript/Angular application, then trace any existing export-related behavior. Done means a PDF includes the listed applicable screenshots, metrics, risk profile, and worst files.

Written by the indexing model from the issue text.