Use GisState for biblio as well

webgis/js/state.js

@@ -8,18 +8,13 @@
  * A lookup table of Leaflet layer groups by category
  */
 
-/**
- * @typedef {Object.<string, Object>} BibliographyLookup
- * A lookup table of bibliography data by category
- */
-
 /**
  * @typedef {Object} GisStateType
  * @property {L.Map|null} map
  * @property {String|null} apiUrl
  * @property {MarkerLookup} markers
  * @property {LayerGroupLookup} layers
- * @property {BibliographyLookup} bibliography
+ * @property {Object|null} bibliography
  */
 
 /** @type {GisStateType} */
@@ -39,13 +34,7 @@ export const GisState = {
         prehistoric: {},
         underwater: {},
     },
-    bibliography: {
-        sites: {},
-        notConserved: {},
-        findings: {},
-        prehistoric: {},
-        underwater: {},
-    },
+    bibliography: null,
     apiUrl : null,
 }