'onTitleModeChanged' change to 'onTitleModeChange'

Signed-off-by: Nkukixi <kouxinxin@huawei.com>

ace/ace_ets_component/entry/src/main/ets/MainAbility/pages/navigation.ets

@@ -132,7 +132,7 @@ struct NavigationExample {
       .titleMode(NavigationTitleMode.Free)
       .hideTitleBar(false)
       .hideBackButton(false)
-      .onTitleModeChanged((titleModel: NavigationTitleMode) => {
+      .onTitleModeChange((titleModel: NavigationTitleMode) => {
         console.log('titleMode')
       })
       .toolBar({ items: [
@@ -148,4 +148,4 @@ struct NavigationExample {
       .hideToolBar(this.hideBar)
     }
   }
-}
+}
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