message: Add translation service to Score Board unit test
diff: +import { TranslateModule, TranslateService } from '@ngx-translate/core'
  import { BarRatingModule } from 'ng2-bar-rating'
  import { BrowserAnimationsModule } from '@angular/platform-browser/animations'
  import { ChallengeService } from './../Services/challenge.service'
  @@ -16,6 +17,7 @@ import { ScoreBoardComponent } from './score-board.component'
  import { of, throwError } from 'rxjs'
  import { DomSanitizer } from '@angular/platform-browser'
  import { MatButtonToggleModule } from '@angular/material/button-toggle'
  +import { EventEmitter } from '@angular/core'
  class MockSocket {
  on (str: string, callback) {
  @@ -29,6 +31,7 @@ describe('ScoreBoardComponent', () => {
  let challengeService
  let configurationService
  let windowRefService
  + let translateService
  let sanitizer
  let mockSocket
  @@ -46,6 +49,11 @@ describe('ScoreBoardComponent', () => {
  // }
  // }
  // }
  + translateService = jasmine.createSpyObj('TranslateService', ['get'])
  + translateService.get.and.returnValue(of({}))
  + translateService.onLangChange = new EventEmitter()
  + translateService.onTranslationChange = new EventEmitter()
  + translateService.onDefaultLangChange = new EventEmitter()
  sanitizer = jasmine.createSpyObj('DomSanitizer',['bypassSecurityTrustHtml','sanitize'])
  sanitizer.bypassSecurityTrustHtml.and.callFake((args) => args)
  sanitizer.sanitize.and.returnValue({})
  @@ -54,6 +62,7 @@ describe('ScoreBoardComponent', () => {
  TestBed.configureTestingModule({
  imports: [
  HttpClientModule,
  + TranslateModule.forRoot(),
  BarRatingModule,
  BrowserAnimationsModule,
  MatCardModule,
  @@ -67,6 +76,7 @@ describe('ScoreBoardComponent', () => {
  ],
  declarations: [ ScoreBoardComponent ],
  providers: [
  + { provide: TranslateService, useValue: translateService },
  { provide: ChallengeService, useValue: challengeService },
  { provide: ConfigurationService, useValue: configurationService },
  { provide: DomSanitizer, useValue: sanitizer },
  