clean up and lint files

src/app/modules/songs/song/edit/history/history.component.spec.ts

@@ -6,13 +6,11 @@ describe('HistoryComponent', () => {
   let component: HistoryComponent;
   let fixture: ComponentFixture<HistoryComponent>;
 
-  beforeEach(
-    waitForAsync(() => {
-      void TestBed.configureTestingModule({
-    imports: [HistoryComponent],
-}).compileComponents();
-    }),
-  );
+  beforeEach(waitForAsync(() => {
+    void TestBed.configureTestingModule({
+      imports: [HistoryComponent],
+    }).compileComponents();
+  }));
 
   beforeEach(() => {
     fixture = TestBed.createComponent(HistoryComponent);

src/app/modules/songs/song/edit/history/history.component.ts

@@ -3,25 +3,22 @@ import {first, map, switchMap} from 'rxjs/operators';
 import {ActivatedRoute} from '@angular/router';
 import {SongService} from '../../../services/song.service';
 import {Song} from '../../../services/song';
-import { NgIf, NgFor, DatePipe } from '@angular/common';
-import { CardComponent } from '../../../../../widget-modules/components/card/card.component';
+import {DatePipe, NgFor, NgIf} from '@angular/common';
+import {CardComponent} from '../../../../../widget-modules/components/card/card.component';
 
 @Component({
-    selector: 'app-history',
-    templateUrl: './history.component.html',
-    styleUrls: ['./history.component.less'],
-    imports: [
-        NgIf,
-        CardComponent,
-        NgFor,
-        DatePipe,
-    ],
+  selector: 'app-history',
+  templateUrl: './history.component.html',
+  styleUrls: ['./history.component.less'],
+  imports: [NgIf, CardComponent, NgFor, DatePipe],
 })
 export class HistoryComponent implements OnInit {
   public song: Song | null = null;
 
-  public constructor(private activatedRoute: ActivatedRoute, private songService: SongService) {
-  }
+  public constructor(
+    private activatedRoute: ActivatedRoute,
+    private songService: SongService
+  ) {}
 
   public ngOnInit(): void {
     this.activatedRoute.params
@@ -29,7 +26,7 @@ export class HistoryComponent implements OnInit {
         map(param => param as {songId: string}),
         map(param => param.songId),
         switchMap(songId => this.songService.read$(songId)),
-        first(),
+        first()
       )
       .subscribe(song => {
         this.song = song;