Update page_files/Categorized_Search.py (#6)

- Update page_files/Categorized_Search.py (c602fcb032b1006452e15839b838e1a438c2c37a)

page_files/Categorized_Search.py

@@ -746,6 +746,11 @@ with right_col:
                 if not (st.session_state.selected_row and st.session_state.selected_row[0] == abbr):
                     st.session_state.selected_row = (abbr, name)
                     st.rerun()
+            else:
+                if st.session_state.selected_row is not None and not selected_cells:
+                    st.session_state.selected_row = None
+                    st.rerun()
+
             if selected_cells:
                 row_idx = selected_cells[0][0]
                 chosen = page_meta.iloc[row_idx]