Fix config variable not being JSON

src/app/config.ts

@@ -2,7 +2,7 @@ export const config = {
   dashboard: {
     route: 'dashboard',
     currentLayout: 'terminal-ide-web',
-    enabledLayouts:  new Set([
+    enabledLayouts: [
       'terminal-ide-web',
       'terminal-ide-vertical',
       'terminal-ide-horizontal',
@@ -11,8 +11,8 @@ export const config = {
       'ide-web-vertical',
       'ide-only',
       'web-only'
-      ]),
-    allLayouts:  new Set([
+      ],
+    allLayouts: [
       'terminal-ide-web',
       'terminal-ide-vertical',
       'terminal-ide-horizontal',
@@ -21,7 +21,7 @@ export const config = {
       'ide-web-vertical',
       'ide-only',
       'web-only'
-    ]),
+    ],
     hide_messages: false
   },
   ide: {

src/app/dashboard/dashboard.component.ts

@@ -14,7 +14,6 @@ import { SidebarComponent } from '../sidebar/sidebar.component';
 export class DashboardComponent implements OnInit, OnDestroy {
   deploying = false;
   deploymentNotificationSubscription: Subscription;
-  enabledLayouts: Set<string> = config.dashboard.enabledLayouts;
   layout: string = config.dashboard.currentLayout;
   hide_messages: boolean = config.dashboard.hide_messages;
   command_handlers = {'layout': this.layoutHandler.bind(this)};
@@ -35,7 +34,7 @@ export class DashboardComponent implements OnInit, OnDestroy {
   }
 
   layoutHandler(data: LayoutCommand) {
-    if (this.enabledLayouts.has(data.layout)) {
+    if (config.dashboard.enabledLayouts.includes(data.layout)) {
       this.setLayout(data.layout);
     }
     else {