Use browser language

frontend/src/app/app.component.ts

@@ -3,7 +3,6 @@ import { AuthService } from './_services/auth.service';
 import { LocationBackService } from 'src/app/_services/locationBack.service';
 import { versions } from 'src/environments/versions';
 import { Router, RouteConfigLoadStart, RouteConfigLoadEnd } from '@angular/router';
-import { TranslateService } from '@ngx-translate/core';
 
 @Component({
   selector: 'app-root',
@@ -19,12 +18,9 @@ export class AppComponent {
   constructor(
     public auth: AuthService,
     private locationBackService: LocationBackService,
-    private router: Router,
-    private translate: TranslateService
+    private router: Router
   ) {
     this.revision_datetime_string = new Date(versions.revision_timestamp).toLocaleString(undefined,  { day: '2-digit', month: '2-digit', year: 'numeric', hour: 'numeric', minute: 'numeric', second: 'numeric' });
-    this.translate.setDefaultLang('en');
-    this.translate.use("it");
   }
 
   ngOnInit () {

frontend/src/app/app.module.ts

@@ -5,6 +5,7 @@ import { HttpClient, HttpClientModule, HTTP_INTERCEPTORS } from '@angular/common
 import { FormsModule } from '@angular/forms';
 import { TranslateLoader, TranslateModule } from '@ngx-translate/core';
 import { TranslateHttpLoader } from '@ngx-translate/http-loader';
+import { TranslationModule } from './translation.module';
 import { ToastrModule } from 'ngx-toastr';
 import { ModalModule } from 'ngx-bootstrap/modal';
 import { TooltipModule } from 'ngx-bootstrap/tooltip';
@@ -68,7 +69,8 @@ import { AuthInterceptor } from './_providers/auth-interceptor.provider';
         useFactory: HttpLoaderFactory,
         deps: [HttpClient]
       }
-    })
+    }),
+    TranslationModule
   ],
   providers: [{
     provide: HTTP_INTERCEPTORS, 

frontend/src/app/translation.module.ts

@@ -9,8 +9,8 @@ import { TranslateModule, TranslateService } from '@ngx-translate/core';
   ]
 })
 export class TranslationModule {
-    constructor(private translate: TranslateService) {
-        this.translate.setDefaultLang('en');
-        this.translate.use("it");
-    }
+  constructor(private translate: TranslateService) {
+    this.translate.setDefaultLang('en');
+    this.translate.use(window.navigator.language.split("-")[0]);
+  }
 }