Update src/app.py

src/app.py

@@ -241,7 +241,7 @@ with tab1:
         columns = [f"Position {i+1}" for i in range(group_size)]
         df = pd.DataFrame(groups, columns=columns)
         df.insert(0, "Sample", range(1, len(df) + 1))
-        st.dataframe(df, use_container_width=True)
+        st.dataframe(df, width="stretch")
 
         st.download_button(
             "⬇️ Download as CSV",
@@ -708,7 +708,7 @@ with tab4:
                 })
 
             preview_df = pd.DataFrame(preview_rows)
-            st.dataframe(preview_df, use_container_width=True, height=300)
+            st.dataframe(preview_df, width="stretch", height=300)
 
             st.markdown("#### Plate Map (hover cells for details)")
             plate_html = render_plate_map_html(plates_needed, well_to_input, max_wells_per_source, num_inputs)
@@ -804,11 +804,11 @@ with tab4:
                 ]
 
                 st.markdown("### 💧 Pipetting Commands")
-                st.dataframe(commands_df, use_container_width=True, height=400)
+                st.dataframe(commands_df, width="stretch", height=400)
                 st.download_button("⬇️ Download Commands CSV", commands_df.to_csv(index=False), "pipetting_commands.csv", mime="text/csv")
 
                 st.markdown("### 📊 Source Volume Summary")
-                st.dataframe(summary_df, use_container_width=True, height=400)
+                st.dataframe(summary_df, width="stretch", height=400)
                 st.download_button("⬇️ Download Source Summary CSV", summary_df.to_csv(index=False), "source_volume_summary.csv", mime="text/csv")
 
         except Exception as e: