Add post status administration (#105)

app/javascript/components/shared/DragZone.tsx

@@ -0,0 +1,12 @@
+import * as React from 'react';
+
+const DragZone = ({dndProvided, isDragDisabled}) => (
+  <span
+    className={`drag-zone${isDragDisabled ? ' drag-zone-disabled' : ''}`}
+    {...dndProvided.dragHandleProps}
+  >
+    <span className="drag-icon"></span>
+  </span>
+);
+
+export default DragZone;