client: Fix flakiness when changing language on desktop

src/public/app/components/app_context.js

@@ -30,7 +30,7 @@ class AppContext extends Component {
      */
     async earlyInit() {
         await options.initializedPromise;
-        initLocale();
+        await initLocale();
     }
 
     setLayout(layout) {        

src/public/app/desktop.js

@@ -10,7 +10,7 @@ import glob from "./services/glob.js";
 import { t } from "./services/i18n.js";
 
 bundleService.getWidgetBundlesByParent().then(async widgetBundles => {
-    appContext.earlyInit();
+    await appContext.earlyInit();
     
     // A dynamic import is required for layouts since they initialize components which require translations.
     const DesktopLayout = (await import("./layouts/desktop_layout.js")).default;