correct linting

src/app/app.module.ts

@@ -6,9 +6,9 @@ import {AppComponent} from './app.component';
 import {ServiceWorkerModule} from '@angular/service-worker';
 import {environment} from '../environments/environment';
 import {BrowserAnimationsModule} from '@angular/platform-browser/animations';
-import {ApplicationFrameModule} from "./application-frame/application-frame.module";
-import {AngularFireModule} from "@angular/fire";
-import {AngularFirestoreModule} from "@angular/fire/firestore";
+import {ApplicationFrameModule} from './application-frame/application-frame.module';
+import {AngularFireModule} from '@angular/fire';
+import {AngularFirestoreModule} from '@angular/fire/firestore';
 
 @NgModule({
   declarations: [

src/app/application-frame/application-frame.module.ts

@@ -1,7 +1,7 @@
 import {NgModule} from '@angular/core';
 import {CommonModule} from '@angular/common';
 import {NavigationComponent} from './navigation/navigation.component';
-import {RouterModule} from "@angular/router";
+import {RouterModule} from '@angular/router';
 
 
 @NgModule({

src/app/songs/services/song-data.service.spec.ts

@@ -1,8 +1,8 @@
 import {async, TestBed} from '@angular/core/testing';
 
 import {SongDataService} from './song-data.service';
-import {AngularFirestore} from "@angular/fire/firestore";
-import {of} from "rxjs";
+import {AngularFirestore} from '@angular/fire/firestore';
+import {of} from 'rxjs';
 
 describe('SongDataService', () => {
 

src/app/songs/services/song-data.service.ts

@@ -1,7 +1,7 @@
 import {Injectable} from '@angular/core';
-import {AngularFirestore, AngularFirestoreCollection} from "@angular/fire/firestore";
-import {Song} from "../models/song";
-import {Observable} from "rxjs";
+import {AngularFirestore, AngularFirestoreCollection} from '@angular/fire/firestore';
+import {Song} from '../models/song';
+import {Observable} from 'rxjs';
 
 @Injectable({
   providedIn: 'root'

src/app/songs/services/song.service.spec.ts

@@ -1,8 +1,8 @@
 import {async, TestBed} from '@angular/core/testing';
 
 import {SongService} from './song.service';
-import {SongDataService} from "./song-data.service";
-import {of} from "rxjs";
+import {SongDataService} from './song-data.service';
+import {of} from 'rxjs';
 
 describe('SongService', () => {
 

src/app/songs/services/song.service.ts

@@ -1,7 +1,7 @@
 import {Injectable} from '@angular/core';
-import {Observable} from "rxjs";
-import {Song} from "../models/song";
-import {SongDataService} from "./song-data.service";
+import {Observable} from 'rxjs';
+import {Song} from '../models/song';
+import {SongDataService} from './song-data.service';
 
 @Injectable({
   providedIn: 'root'

src/app/songs/song-list/list-item/list-item.component.ts

@@ -1,5 +1,5 @@
 import {Component, Input, OnInit} from '@angular/core';
-import {Song} from "../../models/song";
+import {Song} from '../../models/song';
 
 @Component({
   selector: 'app-list-item',

src/app/songs/song-list/song-list.component.spec.ts

@@ -1,9 +1,9 @@
 import {async, ComponentFixture, fakeAsync, TestBed, tick} from '@angular/core/testing';
 
 import {SongListComponent} from './song-list.component';
-import {of} from "rxjs";
-import {SongService} from "../services/song.service";
-import {NO_ERRORS_SCHEMA} from "@angular/core";
+import {of} from 'rxjs';
+import {SongService} from '../services/song.service';
+import {NO_ERRORS_SCHEMA} from '@angular/core';
 
 describe('SongListComponent', () => {
   let component: SongListComponent;

src/app/songs/song-list/song-list.component.ts

@@ -1,6 +1,6 @@
 import {Component, OnInit} from '@angular/core';
-import {SongService} from "../services/song.service";
-import {Song} from "../models/song";
+import {SongService} from '../services/song.service';
+import {Song} from '../models/song';
 
 @Component({
   selector: 'app-songs',

src/app/songs/song-list/song-list.module.ts

@@ -1,9 +1,9 @@
 import {NgModule} from '@angular/core';
 import {CommonModule} from '@angular/common';
-import {SongListComponent} from "./song-list.component";
+import {SongListComponent} from './song-list.component';
 import {ListItemComponent} from './list-item/list-item.component';
-import {CardModule} from "../../widget-modules/components/card/card.module";
-import {SongTypeTranslaterModule} from "../../widget-modules/pipes/song-type-translater/song-type-translater.module";
+import {CardModule} from '../../widget-modules/components/card/card.module';
+import {SongTypeTranslaterModule} from '../../widget-modules/pipes/song-type-translater/song-type-translater.module';
 
 
 @NgModule({

src/app/songs/song/song.component.spec.ts

@@ -1,8 +1,8 @@
 import {async, ComponentFixture, fakeAsync, TestBed, tick} from '@angular/core/testing';
 
 import {SongComponent} from './song.component';
-import {of} from "rxjs";
-import {ActivatedRoute} from "@angular/router";
+import {of} from 'rxjs';
+import {ActivatedRoute} from '@angular/router';
 
 describe('SongComponent', () => {
   let component: SongComponent;

src/app/songs/song/song.component.ts

@@ -1,5 +1,5 @@
 import {Component, OnInit} from '@angular/core';
-import {ActivatedRoute} from "@angular/router";
+import {ActivatedRoute} from '@angular/router';
 
 @Component({
   selector: 'app-song',

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

@@ -1,7 +1,7 @@
 import {NgModule} from '@angular/core';
 import {RouterModule, Routes} from '@angular/router';
-import {SongComponent} from "./song/song.component";
-import {SongListComponent} from "./song-list/song-list.component";
+import {SongComponent} from './song/song.component';
+import {SongListComponent} from './song-list/song-list.component';
 
 
 const routes: Routes = [

src/app/songs/songs.module.ts

@@ -3,7 +3,7 @@ import {CommonModule} from '@angular/common';
 
 import {SongsRoutingModule} from './songs-routing.module';
 import {SongComponent} from './song/song.component';
-import {SongListModule} from "./song-list/song-list.module";
+import {SongListModule} from './song-list/song-list.module';
 
 
 @NgModule({

src/app/widget-modules/pipes/song-type-translater/song-type.pipe.ts

@@ -7,12 +7,12 @@ export class SongTypePipe implements PipeTransform {
 
   transform(songTypeKey: string): string {
     switch (songTypeKey) {
-      case "Worship":
-        return "Anbetung";
-      case "Praise":
-        return "Lobpreis";
+      case 'Worship':
+        return 'Anbetung';
+      case 'Praise':
+        return 'Lobpreis';
       default:
-        return ""
+        return ''
     }
   }