Update src/streamlit_app.py

src/streamlit_app.py

@@ -2,6 +2,9 @@ import streamlit as st
 import pandas as pd
 import plotly.express as px
 
+with open("custom.css") as f:
+    st.markdown(f"<style>{f.read()}</style>", unsafe_allow_html=True)
+
 st.set_page_config(layout="wide")
 st.title("Thread Pulse")
 st.write(