CE-3201: Batch jobs in job list

This is only visible in JobListView story. I will handle migration to typescript in a subtask

I restructured mockdata for jobs a bit. As Anders has suggested before it is probably better to join mockdata for several endpoints in one bigger object than to separate them in different files...it quickly becomes hard work to keep data in sync and ateleast I think it is easier.

Note: I don't like the icon for batches...but coulcn't find any better material icons that has both plus/minus...react icons has some nice one though 😀 https://react-icons.github.io/react-icons/search/#q=plus%20stack

Follow up:

Batch icons