refactored landing page with initialization errors

app/lib/features/search_browser/presentation/widgets/landing/action.dart

@@ -2,6 +2,7 @@ import 'package:bang_navigator/core/routing/routes.dart';
 import 'package:bang_navigator/features/search_browser/domain/entities/modes.dart';
 import 'package:bang_navigator/features/search_browser/domain/entities/sheet.dart';
 import 'package:bang_navigator/features/search_browser/domain/services/create_tab.dart';
+import 'package:bang_navigator/features/search_browser/presentation/widgets/error_container.dart';
 import 'package:bang_navigator/features/settings/data/repositories/settings_repository.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_markdown/flutter_markdown.dart';
@@ -13,8 +14,6 @@ class LandingAction extends HookConsumerWidget {
   const LandingAction({super.key});
   @override
   Widget build(BuildContext context, WidgetRef ref) {
-    final theme = Theme.of(context);
-
     final sessionTokenAvailable = ref.watch(
       settingsRepositoryProvider.select(
         (value) => value.valueOrNull?.kagiSession?.isNotEmpty ?? false,
@@ -29,36 +28,17 @@ class LandingAction extends HookConsumerWidget {
 
     return Visibility(
       visible: sessionTokenAvailable,
-      replacement: Container(
-        margin: const EdgeInsets.symmetric(horizontal: 16.0),
-        decoration: BoxDecoration(
-          color: theme.colorScheme.errorContainer,
-          borderRadius: BorderRadius.circular(4.0),
-        ),
-        child: Row(
-          children: [
-            Padding(
-              padding: const EdgeInsets.all(8.0),
-              child: Icon(
-                Icons.warning,
-                size: 36,
-                color: theme.colorScheme.onErrorContainer,
-              ),
-            ),
-            Expanded(
-              child: Markdown(
-                shrinkWrap: true,
-                onTapLink: (text, href, title) async {
-                  if (href == 'settings') {
-                    await context.push(SettingsRoute().location);
-                  }
-                },
-                data: '## No Kagi Session Provided\n'
-                    'Please navigate to [Settings](settings) and enter your Kagi Session Token.\n'
-                    "You must provide a valid session in order to use Kagi's features.",
-              ),
-            ),
-          ],
+      replacement: ErrorContainer(
+        content: Markdown(
+          shrinkWrap: true,
+          onTapLink: (text, href, title) async {
+            if (href == 'settings') {
+              await context.push(SettingsRoute().location);
+            }
+          },
+          data: '## No Kagi Session Provided\n'
+              'Please navigate to [Settings](settings) and enter your Kagi Session Token.\n'
+              "You must provide a valid session in order to use Kagi's features.",
         ),
       ),
       child: Wrap(