Persist user language

apps/client/src/app/core/auth.guard.ts

@@ -5,6 +5,7 @@ import {
   Router,
   RouterStateSnapshot
 } from '@angular/router';
+import { DataService } from '@ghostfolio/client/services/data.service';
 import { SettingsStorageService } from '@ghostfolio/client/services/settings-storage.service';
 import { UserService } from '@ghostfolio/client/services/user/user.service';
 import { EMPTY } from 'rxjs';
@@ -30,6 +31,7 @@ export class AuthGuard implements CanActivate {
   ];
 
   constructor(
+    private dataService: DataService,
     private router: Router,
     private settingsStorageService: SettingsStorageService,
     private userService: UserService
@@ -74,7 +76,12 @@ export class AuthGuard implements CanActivate {
           const userLanguage = user?.settings?.language;
 
           if (userLanguage && document.documentElement.lang !== userLanguage) {
-            window.location.href = `../${userLanguage}`;
+            this.dataService
+              .putUserSetting({ language: userLanguage })
+              .subscribe(() => {
+                this.userService.remove();
+              });
+
             resolve(false);
             return;
           } else if (