Add Delete Mode

app.py

@@ -108,7 +108,7 @@ def display_messages():
                     st.session_state.edit_index = i
                     st.rerun()
             with col2:
-                if st.button("Delete", key=f"delete_{i}_{len(st.session_state.messages)}"):
+                if st.session_state.is_delete_mode and st.button("Delete", key=f"delete_{i}_{len(st.session_state.messages)}"):
                     del st.session_state.messages[i]
                     st.rerun()
             with col3:
@@ -183,6 +183,8 @@ with st.sidebar:
     </script>
     """
     html(copy_log_button_html, height=50)
+
+    st.session_state.is_delete_mode = st.toggle("Delete Mode")
     
     st.header("Advanced Settings")
     model = st.selectbox("Model", options=["command-r-plus", "command-r"], index=0)