Add label "waiting for concurrency group X"

Hi,

We use a few concurrency groups, would love the UI to make it easier to tell when something is waiting for a concurrency group. In the exact way the banner indicates when we’re waiting for an agent.

This would be great to solve some confusion to newer developers who don’t understand what a concurrency group is and rather than just displaying a blank message.

Also to add onto this, in the Timeline tab when this is currently waiting on the concurrency group, a friendly link to the actual step or concurrency group that we are waiting on would be super handy. Then we can track down a stuck job perhaps or just investigate which job is holding up the group.

Would be super awesome for this! Cheers can’t wait to hear back.

Regards,
Lucas