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/upload-page/upload-page.component.spec.ts

@@ -8,8 +8,8 @@ describe('UploadPageComponent', () => {
 
   beforeEach(waitForAsync(() => {
     TestBed.configureTestingModule({
-      declarations: [ UploadPageComponent ]
-    })
+    imports: [UploadPageComponent]
+})
     .compileComponents();
   }));