JOB QUEUE sidebar: Hide Finished

### Feature Idea

Can we get some upgrades to the QUEUE list?
Show only running + queued (hide finished).
Also - 'clear queue' is a timebomb for anyone that is tempted to click it to see what it does.
Just remove that button, its pointless :)
Thanks!!

### Existing Solutions

_No response_

### Other

_No response_

Start by locating the QUEUE sidebar implementation and the code that renders finished and queued jobs. Trace the existing “clear queue” button and the queue status data before deciding how the requested visibility rule should work. Done means finished jobs are hidden, running and queued jobs remain visible, and the clear-queue button is removed without disrupting queue operation.

Written by the indexing model from the issue text.