Enhance api demo app mobile experience

Editor assessment

The subject promises an enhanced mobile experience for the api demo app without saying what actually changed: layout, gestures, viewport, or something else. The refactor type sits oddly with a user-facing improvement, though that straddle is arguable. No scope token anchors the examples area, and no body details the improvements. No footers. The area is identified and the intent is positive, but improvement-speak with no specifics leaves the message vague about its own content.