fix(ui): revert-to-published button showing on new drafts (#13897)

### What?

Hide the "**Revert to published**" button when creating a new draft that
has never been published.

### Why?

Previously, the button was visible on new drafts, which was confusing
because there was no published version to revert to.

### How?

Updated the revert button condition to also require `hasPublishedDoc`.

packages/ui/src/elements/Status/index.tsx

@@ -198,8 +198,10 @@ export const Status: React.FC = () => {
               />
             </React.Fragment>
           )}
-          {((!isTrashed && canUpdate && statusToRender === 'changed') ||
-            statusToRender === 'draft') && (
+          {!isTrashed &&
+            canUpdate &&
+            hasPublishedDoc &&
+            (statusToRender === 'changed' || statusToRender === 'draft') && (
               <React.Fragment>
                 &nbsp;&mdash;&nbsp;
                 <Button