refactor: i18n for settings module

src/app/translation/thing-translate.module.ts

@@ -20,6 +20,7 @@ import {ThingPropertyNameTranslatePipe, ThingTranslatePipe} from './thing-transl
 import {ThingTranslateService} from './thing-translate.service';
 
 
+// tslint:disable: completed-docs
 export interface ThingTranslateModuleConfig {
   parser?: Provider;
 }

src/app/translation/thing-translate.service.ts

@@ -16,6 +16,7 @@
 import {Injectable, OnDestroy} from '@angular/core';
 import {LangChangeEvent, TranslateService} from '@ngx-translate/core';
 import {SCLanguage, SCThings, SCThingTranslator, SCThingType, SCTranslations} from '@openstapps/core';
+import moment from 'moment';
 import {Subscription} from 'rxjs';
 import {isDefined, ThingTranslateParser} from './thing-translate.parser';
 
@@ -41,10 +42,12 @@ export class ThingTranslateService implements OnDestroy {
               public parser: ThingTranslateParser){
 
     this.translator = new SCThingTranslator('de' ?? this.translateService.currentLang as keyof SCTranslations<SCLanguage>);
+    moment.updateLocale(this.translator.language);
 
     /** set the default language from configuration */
     this.onLangChange = this.translateService.onLangChange.subscribe((event: LangChangeEvent) => {
       this.translator.language = event.lang as keyof SCTranslations<SCLanguage>;
+      moment.updateLocale(event.lang);
     });
 
   }