Update app.py

app.py

@@ -1918,7 +1918,7 @@ with gr.Blocks() as demo:
         branch = gr.Textbox(label="Branch", value="main")
         path = gr.Textbox(label="File Path")
         content = gr.Code(label="File Content", lines=5, language='python', visible=True)
-        diff = gr.Code(label="Diff Content", lines=5, language='diff', visible=False)
+        diff = gr.Code(label="Diff Content", lines=5, language="python", visible=False)
         message = gr.Textbox(label="Message/Comment", visible=True)
         diff_message = gr.Textbox(label="Diff Message", visible=False)
         owner = gr.Textbox(label="Owner")