Adding the links back (#22)

- Adding back the closed dataset header links (94cf85644f4ce93eebca11dcf5f1dfa3dad7e71b)

app/backend/multi_header_util.py

@@ -82,11 +82,19 @@ def mutil_header_options(column_list: list, avg_column: str, is_section: bool):
         'children': [
             {'headerName': format_closed_dataset_header(column),
              'field': column,
+
+             "headerComponentParams": {
+                 "innerHeaderComponent": "linkHeaderComponent",
+                 "url": LINK + get_dataset_url_name(column),
+                 "headerName": column
+             },
+
              'headerClass': 'custom-header-style',
              'cellClass': 'custom-cell-style',
              'sortable': True,
              # 'width': 150,
              "suppressColumnVirtualisation": True,
+
              } for column in close_group_list
         ],