Refactor to generate menu dynamically

webgis/js/controllers/layer_controller.js

@@ -12,17 +12,10 @@ export default class extends Controller {
         let map = GisState.map;
         let target = event.currentTarget;
         const id = target.parentElement.getAttribute('data-id');
-        const layers = {
-            'siti': GisState.layers.sites,
-            'non-conser': GisState.layers.notConserved,
-            'rinv': GisState.layers.findings,
-            'preist': GisState.layers.prehistoric,
-            'subacquei': GisState.layers.underwater,
-        }
-
-        let group = layers[id];
         this.toggleIcon(event.currentTarget);
 
+        let group = GisState.layers[id];
+
         if (map.hasLayer(group)) {
             map.removeLayer(group);
             target.title = "Mostra";