fix filename

app.py

@@ -31,7 +31,8 @@ if uploaded_file is not None:
                    n=20)
 
     directory = "$HOME/app"
-    pattern = os.path.splitext(uploaded_file.name)[0] + "grobid.tei.xml"
+    
+    pattern = os.path.splitext(uploaded_file.name)[0] + ".grobid.tei.xml"
     matching_files = glob.glob(f"{directory}/**/{pattern}", recursive=True)
     
     if matching_files: