Always display detected date in vulnerability details page

Problem

When a user changes the state of a vulnerability, the timestamp, and author and end results of that change are displayed in the page header. This works great for knowing the current state of the vulnerability and who made the lastest change but it removes a key data point, detected date.

Proposal

Add the detected date and location as an activity item to the vulnerability details page.

system note for detected date

Icon in GitLab-SVGs

Implementation Plan

Backend data already exists and is already passed to the frontend, and the frontend component to show a history entry exists as well, all that's needed is:

• add data in the component & have it show the backend data
• write tests
• update documentation/screenshots