update app.py

app.py

@@ -6,7 +6,9 @@ from st_pages import add_page_title, get_nav_from_toml
 # defaults to looking in .streamlit/pages.toml, so you can just call `get_nav_from_toml()`
 
 st.set_page_config(layout="wide")
-nav = get_nav_from_toml(".streamlit/pages_sections.toml")
-pg = st.navigation(nav)
-add_page_title(pg)
-pg.run()
+
+pages = [
+    st.Page("./pages/app_task-2.py", title="Toxic_app", icon="🚨")
+]
+pg = st.navigation(pages)
+pg.run()