项目首页Hero的视频背景如何更换

在src/config/locale/messages/en/landing.json、src/config/locale/messages/zh/landing.json

可更换background_video的src（视频源）和poster（封面图）

 "hero": {
     "background_video": {
      "src": "https://oss.pixany.xyz/uploads/video/video.mp4",
      "poster": "https://oss.pixany.xyz/uploads/video/thumbnail.jpg"
    }
 }