show selected proteins when using example query

ProtHGT_app.py

@@ -106,6 +106,22 @@ with st.sidebar:
 
     if selection_method == "Use example query":
         selected_proteins = st.session_state.example_proteins
+        st.write(f"Selected proteins:")
+        st.markdown(
+            f"""
+            <div style="
+                height: 150px; 
+                overflow-y: scroll;
+                border: 1px solid #ccc;
+                border-radius: 4px;
+                padding: 8px;
+                margin-bottom: 16px;
+                background-color: white;">
+                {'<br>'.join(selected_proteins)}
+            </div>
+            """, 
+            unsafe_allow_html=True
+        )
 
     elif selection_method == "Search proteins":