Fixes tests

src/app/root/theme-switcher/theme-switcher.component.spec.ts

@@ -11,6 +11,7 @@ import { CurrentQuizMockService } from '../../service/current-quiz/current-quiz.
 import { CurrentQuizService } from '../../service/current-quiz/current-quiz.service';
 import { FooterBarService } from '../../service/footer-bar/footer-bar.service';
 import { HeaderLabelService } from '../../service/header-label/header-label.service';
+import { I18nService } from '../../service/i18n/i18n.service';
 import { SettingsService } from '../../service/settings/settings.service';
 import { SharedService } from '../../service/shared/shared.service';
 import { IndexedDbService } from '../../service/storage/indexed.db.service';
@@ -48,7 +49,7 @@ describe('ThemeSwitcherComponent', () => {
         }),
       ],
       providers: [
-        IndexedDbService, {
+        I18nService, IndexedDbService, {
           provide: StorageService,
           useClass: StorageServiceMock,
         }, HeaderLabelService, ThemesService, {

src/app/themes/themes.component.spec.ts

@@ -10,6 +10,7 @@ import { ConnectionService } from '../service/connection/connection.service';
 import { CurrentQuizMockService } from '../service/current-quiz/current-quiz.mock.service';
 import { CurrentQuizService } from '../service/current-quiz/current-quiz.service';
 import { FooterBarService } from '../service/footer-bar/footer-bar.service';
+import { I18nService } from '../service/i18n/i18n.service';
 import { SettingsService } from '../service/settings/settings.service';
 import { SharedService } from '../service/shared/shared.service';
 import { IndexedDbService } from '../service/storage/indexed.db.service';
@@ -46,7 +47,7 @@ describe('ThemesComponent', () => {
         }),
       ],
       providers: [
-        IndexedDbService, {
+        I18nService, IndexedDbService, {
           provide: StorageService,
           useClass: StorageServiceMock,
         }, TranslateService, FooterBarService, SettingsService, {