Update app.py

app.py

@@ -26,7 +26,7 @@ def movefiles():
     # Specify the path of the file you want to move
     directory_name = 'temp_dir'
     absolute_path = os.path.abspath(directory_name)
-    file_path = 'random_file1.txt'
+    file_path = 'random_file_1.txt'
     old_path = os.path.join(absolute_path, os.path.basename(file_path))
 
     # Construct the new path in the temporary directory with the same filename