Update src/streamlit_app.py

src/streamlit_app.py

@@ -1,4 +1,5 @@
 import streamlit as st
+import seaborn as sns
 import pandas as pd
 import altair as alt
 from pathlib import Path
@@ -145,10 +146,10 @@ df_top = df[df['crm_cd_desc'].isin(top_crimes)]
 heatmap1_data = df_top.groupby(['crm_cd_desc', 'year']).size().unstack(fill_value=0)
 
 # Create the heat map.
-alt.figure(figsize=(10, 6))
+plt.figure(figsize=(10, 6))
 sns.heatmap(heatmap1_data, annot=True, fmt="d", cmap="YlOrRd")
-alt.title("Top 10 Crime Types by Year")
-alt.xlabel("Year")
+plt.title("Top 10 Crime Types by Year")
+plt.xlabel("Year")
 alt.ylabel("Crime Type")
 alt.tight_layout()
 alt.show()