Add lang attr on desktop and browser (#14691)

apps/browser/src/popup/app.component.ts

@@ -1,11 +1,20 @@
 // FIXME: Update this file to be type safe and remove this and next line
 // @ts-strict-ignore
-import { ChangeDetectorRef, Component, NgZone, OnDestroy, OnInit, inject } from "@angular/core";
+import {
+  ChangeDetectorRef,
+  Component,
+  DestroyRef,
+  NgZone,
+  OnDestroy,
+  OnInit,
+  inject,
+} from "@angular/core";
 import { takeUntilDestroyed } from "@angular/core/rxjs-interop";
 import { NavigationEnd, Router, RouterOutlet } from "@angular/router";
 import { Subject, takeUntil, firstValueFrom, concatMap, filter, tap } from "rxjs";
 
 import { DeviceTrustToastService } from "@bitwarden/angular/auth/services/device-trust-toast.service.abstraction";
+import { DocumentLangSetter } from "@bitwarden/angular/platform/i18n";
 import { LogoutReason } from "@bitwarden/auth/common";
 import { AccountService } from "@bitwarden/common/auth/abstractions/account.service";
 import { AuthService } from "@bitwarden/common/auth/abstractions/auth.service";
@@ -73,9 +82,14 @@ export class AppComponent implements OnInit, OnDestroy {
     private biometricStateService: BiometricStateService,
     private biometricsService: BiometricsService,
     private deviceTrustToastService: DeviceTrustToastService,
+    private readonly destoryRef: DestroyRef,
+    private readonly documentLangSetter: DocumentLangSetter,
     private popupSizeService: PopupSizeService,
   ) {
     this.deviceTrustToastService.setupListeners$.pipe(takeUntilDestroyed()).subscribe();
+
+    const langSubscription = this.documentLangSetter.start();
+    this.destoryRef.onDestroy(() => langSubscription.unsubscribe());
   }
 
   async ngOnInit() {