Update app.py

app.py

@@ -14,7 +14,7 @@ st.markdown(embed, unsafe_allow_html=True)
 # Create a nested streamlit-option-menu
 options = [
     "Option 1",
-    streamlit_option_menu(
+    option_menu(
         "Sub Menu",
         options=["Option 2", "Option 3"],
         default="Option 2",
@@ -23,4 +23,4 @@ options = [
 ]
 
 # Display the streamlit-option-menu
-streamlit_option_menu("Main Menu", options, default="Option 1", style={"width": "100%"})
+option_menu("Main Menu", options, default="Option 1", style={"width": "100%"})