Fix layer name in tree

src/app/map/tree-layer-item/tree-layer-item.component.html

@@ -14,7 +14,7 @@
             [innerHTML]='node.symbol'
             >
         </div>
-        <div class="layer-title">{{node.title || node.name}}<!-- ({{ node.count }})--></div>
+        <div class="layer-title">{{node.title || node.name || node.description}}<!-- ({{ node.count }})--></div>
     </mat-checkbox>
 </div>