Refactor get_papers function to display papers not

app.py

@@ -103,12 +103,13 @@ def get_papers(
     for paper in already_claimed[False]:
         url = f"https://huggingface.co/papers/{paper['id']}"
         results += f"- [{paper['title']}]({url})\n"
-    for paper in papers_indexed_by_hf[False]:
+    if len(papers_indexed_by_hf[False]) > 0:
         results += f"# Papers not yet indexed by Hugging Face\n"
-        paper_title = paper["title"]
-        arxiv_id = paper["externalIds"]["ArXiv"]
-        url = f"https://huggingface.co/papers/{arxiv_id}"
-        results += f"- [{paper_title}]({url})\n"
+        for paper in papers_indexed_by_hf[False]:
+            paper_title = paper["title"]
+            arxiv_id = paper["externalIds"]["ArXiv"]
+            url = f"https://huggingface.co/papers/{arxiv_id}"
+            results += f"- [{paper_title}]({url})\n"
     return results