fix order of arguments

app.py

@@ -68,7 +68,7 @@ with gr.Blocks() as demo:
     plot = gr.Plot()
 
     upload_btn.upload(fn=preprocess, inputs=[upload_btn, prediction_length, windows], outputs=plot)
-    train_btn.click(fn=train_and_forecast, inputs=[upload_btn, prediction_length, epochs, windows], outputs=plot)
+    train_btn.click(fn=train_and_forecast, inputs=[upload_btn, prediction_length, windows, epochs], outputs=plot)
 
 if __name__ == "__main__":
     demo.queue().launch()