Update app.py

app.py

@@ -3,6 +3,10 @@ import os, logging, sys, stat
 import streamlit as st
 
 st.set_page_config(page_title="Ecomm Chatbot", layout="wide", page_icon="🛍️")
+
+from src.brand import inject_brand_css, page_header, card_start, card_end
+inject_brand_css() 
+
 st.markdown("""
 <style>
 /* Make small action buttons look like links */