fixed dd9e2f3b from https://gitee.com/zengyawen/docs/pulls/7356

update en/application-dev/website.md.
Signed-off-by: Nzengyawen <zengyawen1@huawei.com>

en/application-dev/website.md

@@ -249,7 +249,6 @@
     - [Redirecting to the Dial Screen](telephony/jumping-to-the-dial-screen.md)
     - [Obtaining Current Cellular Network Signal Information](telephony/cellular-network-signal-info.md)
   - Data Management 
-    
     - Distributed Data Service
       - [Distributed Data Service Overview](database/database-mdds-overview.md)
       - [Distributed Data Service Development](database/database-mdds-guidelines.md)
@@ -270,7 +269,6 @@
       - [Work Scheduler Overview](task-management/work-scheduler-overview.md)
       - [Work Scheduler Development](task-management/work-scheduler-dev-guide.md)
   - Device
-  
     - USB Service
       - [USB Service Overview](device/usb-overview.md)
       - [USB Service Development](device/usb-guidelines.md)
@@ -288,11 +286,9 @@
       - [Sample Server Overview](device/sample-server-overview.md)
       - [Sample Server Development](device/sample-server-guidelines.md)
   - Device Usage Statistics
-  
     - [Device Usage Statistics Overview](device-usage-statistics/device-usage-statistics-overview.md)
     - [Device Usage Statistics Development](device-usage-statistics/device-usage-statistics-dev-guide.md)
   - DFX
-  
     - Application Event Logging
       - [Overview of Application Event Logging](dfx/hiappevent-overview.md)
       - [Development of Application Event Logging](dfx/hiappevent-guidelines.md)
@@ -305,19 +301,16 @@
     - Error Management
       - [Development of Error Manager](dfx/errormanager-guidelines.md)
   - Internationalization
-
     - [Internationalization Overview](internationalization/international-overview.md)
     - [Internationalization Development (intl)](internationalization/intl-guidelines.md)
     - [Internationalization Development (i18n)](internationalization/i18n-guidelines.md)
   - [OpenHarmony IDL Specifications and User Guide](IDL/idl-guidelines.md)
   - Native APIs
-  
     - [Using Native APIs in Application Projects](napi/napi-guidelines.md)
     - [Drawing Development](napi/drawing-guidelines.md)
     - [Native Window Development](napi/native-window-guidelines.md)
     - [Raw File Development](napi/rawfile-guidelines.md)
 - Tools
-  
   - [DevEco Studio (OpenHarmony) User Guide](quick-start/deveco-studio-user-guide-for-openharmony.md)
 - Hands-On Tutorials
   - [Samples](https://gitee.com/openharmony/app_samples/blob/master/README.md)