fix: resolve mobile menu and duplicate titles

- Fixed _sidebar.md format with asterisks and leading slashes for docs.page compatibility
- Removed duplicate H1 headings from all pages (frontmatter title is sufficient)
- Mobile menu should now display properly with navigation items
- Cleaner page titles without repetition

Author: ened

docs/_sidebar.md

@@ -1,8 +1,9 @@
-- [Get Started](quickstart)
-- **Examples**
-  - [Data Sync](usecases/data-sync)
-  - [File Upload](usecases/upload-files)
-  - [Cleanup Tasks](usecases/periodic-cleanup)
-  - [Notifications](usecases/fetch-notifications)
-  - [Database Tasks](usecases/database-maintenance)
-- [Debugging](debugging)
+* [Home](/)
+* [Get Started](/quickstart)
+* **Examples**
+  * [Data Sync](/usecases/data-sync)
+  * [File Upload](/usecases/upload-files)
+  * [Cleanup Tasks](/usecases/periodic-cleanup)
+  * [Notifications](/usecases/fetch-notifications)
+  * [Database Tasks](/usecases/database-maintenance)
+* [Debugging](/debugging)

docs/debugging.mdx

@@ -3,8 +3,6 @@ title: Debugging Background Tasks
 description: Debug and troubleshoot background tasks on Android and iOS
 ---
 
-# Debugging Background Tasks
-
 Background tasks can be tricky to debug since they run when your app is closed. Here's how to effectively debug and troubleshoot them on both platforms.
 
 ## Enable Debug Mode

docs/index.mdx

@@ -3,8 +3,6 @@ title: Flutter Workmanager
 description: Background task execution for Flutter apps
 ---
 
-# Flutter Workmanager
-
 Execute Dart code in the background, even when your app is closed. Perfect for data sync, file uploads, and periodic maintenance tasks.
 
 ## Key Features

docs/quickstart.mdx

@@ -3,8 +3,6 @@ title: Quick Start
 description: Get started with Flutter Workmanager in minutes
 ---
 
-# Quick Start
-
 Get Flutter Workmanager up and running in your app quickly.
 
 ## Installation

docs/usecases/data-sync.mdx

@@ -1,10 +1,8 @@
 ---
-title: Example - Data Sync
+title: Data Sync Example
 description: Example implementation for syncing API data in background
 ---
 
-# Example: API Data Sync
-
 Keep your app's data fresh by automatically syncing with your backend API, even when the app is closed.
 
 ## When to Use This

docs/usecases/database-maintenance.mdx

@@ -1,10 +1,8 @@
 ---
-title: Example - Database Tasks
+title: Database Tasks Example
 description: Example implementation for database maintenance tasks
 ---
 
-# Example: Database Maintenance
-
 Automatically maintain your app's local database by cleaning up old records, optimizing indexes, and performing routine maintenance tasks in the background.
 
 ## When to Use This

docs/usecases/fetch-notifications.mdx

@@ -1,10 +1,8 @@
 ---
-title: Example - Notifications
+title: Notifications Example
 description: Example implementation for background notification checking
 ---
 
-# Example: Notification Checking
-
 Automatically check for new notifications, messages, and updates from your server, even when the app is closed.
 
 ## When to Use This

docs/usecases/periodic-cleanup.mdx

@@ -1,10 +1,8 @@
 ---
-title: Example - Cleanup Tasks
+title: Cleanup Tasks Example
 description: Example implementation for periodic cleanup tasks
 ---
 
-# Example: Cleanup Tasks
-
 Keep your app performing well by automatically cleaning up old files, cached data, and temporary content in the background.
 
 ## When to Use This

docs/usecases/upload-files.mdx

@@ -1,10 +1,8 @@
 ---
-title: Example - File Upload
+title: File Upload Example
 description: Example implementation for background file uploads
 ---
 
-# Example: Background File Upload
-
 Upload user files in the background, even when the app is closed, ensuring reliable delivery when network conditions are good.
 
 ## When to Use This