fixing playground responsive bahavior
fixing playground responsive bahavior

Summary: The error message saying the playground is only available on bigger screens also was shown on big screens.

Reviewed By: emilsjolander

Differential Revision: D7989482

fbshipit-source-id: f444ca2d6608b868c4ff4d38fa6798d80b57c047

facebook/yoga,facebook/yoga,facebook/css-layout,facebook/yoga,facebook/yoga,facebook/css-layout,facebook/css-layout,facebook/css-layout,facebook/css-layout,facebook/yoga,facebook/css-layout,facebook/yoga,facebook/yoga,facebook/yoga,facebook/css-layout,facebook/yoga,facebook/yoga,facebook/css-layout,facebook/css-layout