IssueNo: #I7UZUJ:[新需求]: Rectify the arkts syntax

Description: Rectify the arkts syntax
Sig: SIG_ApplicaitonFramework
Feature or Bugfix: Feature
Binary Source: No
Signed-off-by: N189******51 <lipeicheng5@huawei.com>

zh-cn/application-dev/reference/apis/js-apis-launcherBundleManager.md

@@ -103,7 +103,7 @@ getLauncherAbilityInfo(bundleName: string, userId: number) : Promise<Array\<[Lau
 
 **示例：**
 
-```typescript
+```ts
 import launcherBundleManager from '@ohos.bundle.launcherBundleManager';
 import { BusinessError } from '@ohos.base';
 
@@ -155,7 +155,7 @@ getLauncherAbilityInfoSync(bundleName: string, userId: number) : Array\<[Launche
 
 **示例：**
 
-```typescript
+```ts
 import launcherBundleManager from '@ohos.bundle.launcherBundleManager';
 
 try {