dev.knotless.listSteps

The shared steps the appview has indexed, from dev.knotless.release records of packages named `@step/<name>` whose one file is a step file, each at its latest version, in the order of their names: everyone's, one repository's, or those whose name starts with `q`. A step of an account, repository or release taken down is left out. No authentication; responses are not personalized.