Add check for ogBootServicesStatus in getServices method to prevent errors

ogWebconsole/src/app/components/global-status/global-status.component.ts

@@ -64,6 +64,9 @@ export class GlobalStatusComponent implements OnInit {
   }
 
   getServices(): { name: string, status: string }[] {
+    if (!this.ogBootServicesStatus) {
+      return [];
+    }
     return Object.keys(this.ogBootServicesStatus).map(key => ({
       name: key,
       status: this.ogBootServicesStatus[key]