Refactor tutorial service for public access and enhance authentication handling

jambotron-ui/src/app/main-module/main.component/main.component.ts

@@ -61,6 +61,7 @@ export class MainComponent implements OnInit{
   isLoggedIn = false;
   showAdminBoard = false;
   showModeratorBoard = false;
+  showUserBoard = false;
   username?: string;
 
   eventBusSub?: Subscription;
@@ -74,12 +75,9 @@ export class MainComponent implements OnInit{
   constructor(private router: Router,private http: HttpClient) {
 
   }
-  goToHome() {
-    this.router.navigate(['main/home']);
-  }
 
   ngOnInit(): void {
-    this.isLoggedIn = this.storageService.isLoggedIn();
+
 
     this.refreshToolbar();
 
@@ -89,12 +87,14 @@ export class MainComponent implements OnInit{
   }
 
   refreshToolbar() {
+    this.isLoggedIn = this.storageService.isLoggedIn();
     if (this.isLoggedIn) {
       const user = this.storageService.getUser();
       this.roles = user.roles;
 
-      this.showAdminBoard = true;//this.roles.includes('ROLE_ADMIN');
+      this.showAdminBoard = this.roles.includes('ROLE_ADMIN');
       this.showModeratorBoard = this.roles.includes('ROLE_MODERATOR');
+      this.showUserBoard = this.roles.includes('ROLE_USER');
 
       this.username = user.username;
     }