fix scroll position

src/app/modules/songs/songs-routing.module.ts

@@ -5,12 +5,16 @@ import {SongListComponent} from './song-list/song-list.component';
 import {EditComponent} from './song/edit/edit.component';
 import {NewComponent} from './song/new/new.component';
 import {EditSongGuard} from './song/edit/edit-song.guard';
+import {SongListResolver} from './services/song-list.resolver';
 
 const routes: Routes = [
   {
     path: '',
     component: SongListComponent,
     pathMatch: 'full',
+    resolve: {
+      songs: SongListResolver,
+    },
   },
   {
     path: 'new',