hide sidebar layer if online

src/components/map-layers/SidebarLayers.vue

 <template>
-  <div :class="['sidebar-container', { expanded }]">
+  <div
+    v-if="isOnline"
+    :class="['sidebar-container', { expanded }]"
+  >
     <!-- <div class="sidebar-layers"></div> -->
     <div
       class="layers-icon"
@@ -132,7 +135,12 @@ export default {
   },
 
   computed: {
-    ...mapState('map', ['availableLayers']),
+    ...mapState([
+      'isOnline',
+    ]),
+    ...mapState('map', [
+      'availableLayers'
+    ]),
   },
 
   mounted() {