feat(mobile): add support for material themes (#11560)

* feat(mobile): add support for material themes

Added support for custom theming and updated all elements accordingly.

* fix(mobile): Restored immich brand colors to default theme

* fix(mobile): make ListTile titles bold in settings main page

* feat(mobile): update bottom nav and appbar colors

* small tweaks

---------

Co-authored-by: Alex <alex.tran1502@gmail.com>

mobile/lib/pages/login/login.page.dart

@@ -3,6 +3,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_hooks/flutter_hooks.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:immich_mobile/extensions/build_context_extensions.dart';
+import 'package:immich_mobile/extensions/theme_extensions.dart';
 import 'package:immich_mobile/widgets/forms/login/login_form.dart';
 import 'package:immich_mobile/routing/router.dart';
 import 'package:package_info_plus/package_info_plus.dart';
@@ -39,8 +40,8 @@ class LoginPage extends HookConsumerWidget {
               children: [
                 Text(
                   'v${appVersion.value}',
-                  style: const TextStyle(
-                    color: Colors.grey,
+                  style: TextStyle(
+                    color: context.colorScheme.onSurfaceSecondary,
                     fontWeight: FontWeight.bold,
                     fontFamily: "Inconsolata",
                   ),