fix nothing to display

mastodon-api.js

@@ -160,6 +160,7 @@ export const getData = async (url, token) => {
     return {newsFeedEl, bookmarksNb};
   } catch(e) {
     console.error(e);
+    newsFeedEl.innerHTML = '<h2>Nothing to display…</h2>';
+    return newsFeedEl;
   }
-  return 'Nothing to display…';
 };
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