A page to monitor background tasks

[pregress]

Current Behavior

Missing

Proposed Behavior

Would be nice if there is a page where you can monitor the state of past and current background tasks.

Checklist

• [x] I have read and understand the contributing guidelines
• [x] I have checked the existing issues for whether this enhancement was already requested

[nscuro]

Unfortunately this is not possible because the task queues are entirely in-memory, and tasks have no state that could be observed.

However, this will change with the upcoming version 5. You can see some background here: https://github.com/DependencyTrack/hyades/blob/adr-drop-kafka/docs/architecture/decisions/002-workflow-orchestration.md

We also teased this during out last community meeting (slides here):