feat: updated app.py

app.py

@@ -253,6 +253,7 @@ elif page == "Customer Analysis":
 
                     # Ensure all values are numeric
                     sales_data_filtered = sales_data_filtered.apply(pd.to_numeric, errors='coerce')
+                    all_manufacturers = all_manufacturers.apply(pd.to_numeric, errors='coerce')
 
                     # Sort manufacturers by percentage of units and get top 10
                     top_units = all_manufacturers.sort_values(by=all_manufacturers.columns[0], ascending=False).head(10)