chang app1 for pp-matting (#5699)

* change app1

* change pp-matting app1

modelcenter/PP-Matting/APP/app.py → modelcenter/PP-Matting/APP1/app.py

@@ -179,4 +179,4 @@ with gr.Blocks() as demo:
     btn1.click(fn=clear_all, inputs=None, outputs=[img_in, img_out])
     gr.Button.style(1)
 
-demo.launch()
+demo.launch(share=True)