Frontend first draft

frontend/pweb/lib/pages/login/app_bar.dart

@@ -0,0 +1,21 @@
+import 'package:flutter/material.dart';
+
+import 'package:pshared/widgets/locale.dart';
+
+import 'package:pweb/generated/i18n/app_localizations.dart';
+
+
+class LoginAppBar extends StatelessWidget implements PreferredSizeWidget {
+  const LoginAppBar({super.key});
+
+  @override
+  Widget build(BuildContext context) => AppBar(
+    automaticallyImplyLeading: false,
+    actions: const [
+      LocaleChangerDropdown(availableLocales: AppLocalizations.supportedLocales),
+    ],
+  );
+
+  @override
+  Size get preferredSize => const Size.fromHeight(kToolbarHeight);
+}