SSBC: Show banner on batch change page when spec is executing
Created by: courier-new
When a batch change has a spec that is currently executing, show a banner on the batch change details page on any tab that indicates as such.
Design: https://github.com/sourcegraph/sourcegraph/issues/31419 Figma: https://www.figma.com/file/cTKjwbvWqU6xAykZmCTTqy/SSBC?node-id=2413%3A73095