Move a waiting run to the front of the queue
Runs waiting for a runner or a cluster slot get a Move to front button on the queue page.
Runs that wait for a runner in a pool, or for a cluster slot, now show a Move to front button on the queue page. It puts the run first in its line and tells you how many runs it moved ahead of. Rows show the repository and pull request number when the run has them. Only signed-in people can reorder the queue, and a run that was already picked up reports that instead of moving.