refactor: update Swagger schema definition for response structure

apps/app/src/server/routes/apiv3/page/index.ts

@@ -304,17 +304,16 @@ module.exports = (crowi) => {
    *              application/json:
    *                schema:
    *                  properties:
-   *                    data:
-   *                      type: object
-   *                      properties:
-   *                        page:
-   *                          $ref: '#/components/schemas/Page'
-   *                        tags:
-   *                          type: array
-   *                          items:
-   *                            $ref: '#/components/schemas/Tags'
-   *                        revision:
-   *                          $ref: '#/components/schemas/Revision'
+   *                    type: object
+   *                    properties:
+   *                      page:
+   *                        $ref: '#/components/schemas/Page'
+   *                      tags:
+   *                        type: array
+   *                        items:
+   *                          $ref: '#/components/schemas/Tags'
+   *                      revision:
+   *                        $ref: '#/components/schemas/Revision'
    *          409:
    *            description: page path is already existed
    */