step 1 - convert al lcomponents, directives and pipes to standalone

see https://v17.angular.io/guide/standalone-migration
I executed:
ng g @angular/core:standalone
and selected "Convert all components, directives and pipes to standalone"

pdb-js/src/app/dashboard-page/dashboard/text-widget/text-widget.component.spec.ts

@@ -8,8 +8,8 @@ describe('TextWidgetComponent', () => {
 
   beforeEach(async () => {
     await TestBed.configureTestingModule({
-      declarations: [ TextWidgetComponent ]
-    })
+    imports: [TextWidgetComponent]
+})
     .compileComponents();
 
     fixture = TestBed.createComponent(TextWidgetComponent);

pdb-js/src/app/dashboard-page/dashboard/text-widget/text-widget.component.ts

@@ -3,10 +3,14 @@ import { MatDialog } from '@angular/material/dialog';
 import { ConfirmationDialogComponent } from 'src/app/confirmation-dialog/confirmation-dialog.component';
 import { TextWidget } from 'src/app/dashboard.service';
 import { AddTextDialogComponent } from '../add-text-dialog/add-text-dialog.component';
+import { MatIconButton } from '@angular/material/button';
+import { MarkdownComponent } from 'ngx-markdown';
 
 @Component({
-  selector: 'app-text-widget',
-  templateUrl: './text-widget.component.html'
+    selector: 'app-text-widget',
+    templateUrl: './text-widget.component.html',
+    standalone: true,
+    imports: [MatIconButton, MarkdownComponent]
 })
 export class TextWidgetComponent {
   @Input()