feat(account): add content preferences page

Author: fulleni

lib/account/view/content_preferences_page.dart

@@ -0,0 +1,19 @@
+import 'package:flutter/material.dart';
+import 'package:ht_main/l10n/l10n.dart';
+
+/// {@template content_preferences_page}
+/// A placeholder page for managing user content preferences.
+/// {@endtemplate}
+class ContentPreferencesPage extends StatelessWidget {
+  /// {@macro content_preferences_page}
+  const ContentPreferencesPage({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    final l10n = context.l10n;
+    return Scaffold(
+      appBar: AppBar(title: Text(l10n.accountContentPreferencesTile)),
+      body: const Center(child: Text('CONTENT PREFERENCES PAGE (Placeholder)')),
+    );
+  }
+}