“recent conversions” banner shouldn’t link to deleted datasets

[fm3]

Often users delete datasets after uploading and noticing that something went wrong.

They are, then, still listed and linked in the “recent conversions” banner. That should be removed.

I’m unsure how to integrate that into the current code. The frontend only looks at the list of jobs, the info if the dataset still exists isn’t available in this context. We need to join this either in the frontend or in the backend and consider how to design the protocol.

Maybe a query param for the job list view to skip jobs of inactive datasets?

Or maybe we want the job still listed but the dataset deletion marked there?