Implement changing messaging visibility from API

src/app/dashboard/dashboard.component.ts

@@ -36,10 +36,12 @@ export class DashboardComponent implements OnInit, OnDestroy {
   layoutHandler(data: LayoutCommand) {
     if (config.dashboard.enabledLayouts.includes(data.layout)) {
       this.setLayout(data.layout);
-    }
-    else {
+    } else {
       console.log('Invalid ide layout "' + data.layout + '" received!');
     }
+    if (data.hide_messages != undefined) {
+      this.hide_messages = data.hide_messages;
+    }
   }
 
   setLayout(layout: string) {

src/app/dashboard/layout-command.ts

@@ -1,4 +1,5 @@
 export class LayoutCommand {
     command: string;
     layout: string;
+    hide_messages?: boolean;
 }