fix onbackpress return type, fix note edit input method behavior

Signed-off-by: guozejun <guozejun@huawei.com>

product/tablet/src/main/ets/pages/MyNoteHome.ets

@@ -93,7 +93,7 @@ export struct MyNoteHomeComp {
     this.refreshFlag = (this.refreshFlag == 0 ? 1 : 0)
   }
 
-  onBackPress():void{
+  onBackPress() {
     LogUtil.info(this.TAG, "onBackPress")
     // 退出键盘
     inputMethod.getInputMethodController().stopInput();

product/tablet/src/main/ets/pages/NoteContentHome.ets

@@ -16,6 +16,7 @@
 import {NoteContent} from '@ohos/component/src/main/ets/components/NoteContent'
 import {LogUtil} from '@ohos/utils/src/main/ets/default/baseUtil/LogUtil'
 import RdbStoreUtil from '@ohos/utils/src/main/ets/default/baseUtil/RdbStoreUtil'
+import inputMethod from '@ohos.inputmethod'
 
 @Entry
 @Component
@@ -40,6 +41,7 @@ struct NoteContentHome {
      LogUtil.info(this.TAG, "onBackPress")
      this.controllerShow.runJavaScript({ script: "RICH_EDITOR.setInputEnabled(false)" })
      this.controllerShow.runJavaScript({ script: "get_html_content()" })
+     inputMethod.getInputMethodController().stopInput()
   }
 
   aboutToAppear(): void{