Revert "ACS-3640 a 11 y aca 881740 snackbar messages disappear without option to adjust timing (#7916)" (#7977)

This reverts commit 4d76ebe1ab.

demo-shell/src/app/components/file-view/file-view.component.ts

@@ -17,14 +17,8 @@
 
 import { Component, OnInit, ViewEncapsulation } from '@angular/core';
 import { ActivatedRoute, Router, PRIMARY_OUTLET } from '@angular/router';
-import {
-    ContentService,
-    AllowableOperationsEnum,
-    PermissionsEnum,
-    NodesApiService,
-    FileUploadErrorEvent,
-    NotificationService
-} from '@alfresco/adf-core';
+import { ContentService, AllowableOperationsEnum, PermissionsEnum, NodesApiService, FileUploadErrorEvent } from '@alfresco/adf-core';
+import { MatSnackBar } from '@angular/material/snack-bar';
 import { PreviewService } from '../../services/preview.service';
 
 @Component({
@@ -70,10 +64,10 @@ export class FileViewComponent implements OnInit {
 
     constructor(private router: Router,
                 private route: ActivatedRoute,
+                private snackBar: MatSnackBar,
                 private nodeApiService: NodesApiService,
                 private contentServices: ContentService,
-                private preview: PreviewService,
-                private notificationService: NotificationService) {
+                private preview: PreviewService) {
     }
 
     ngOnInit() {
@@ -111,7 +105,7 @@ export class FileViewComponent implements OnInit {
 
     onUploadError(event: FileUploadErrorEvent) {
         const errorMessage = event.error;
-        this.notificationService.showError(errorMessage);
+        this.snackBar.open(errorMessage, '', { duration: 4000 });
     }
 
     toggleEmptyMetadata() {