Reorganize structure with entry point

webgis/js/index.js

@@ -0,0 +1,17 @@
+import GIS from './gis.js';
+import UI from './ui.js';
+
+document.addEventListener('DOMContentLoaded', async () => {
+    let progress = document.querySelector('progress');
+    const init = await GIS.initMap('map');
+    progress.classList.add('is-hidden');
+    let {map, sites} = init;
+
+    map._container.setAttribute('aria-busy', false);
+
+    UI.addCenterMapControl(map, GIS.CENTER_COORDS, GIS.INIT_ZOOM);
+    UI.toggleMenu('siti');
+    UI.toggleBurger('navbar-burger');
+    UI.sitesMenu('.menu-list', map, sites);
+    UI.projectInfo('#project-info');
+});