fix：群聊信息不完整

wl

2022-12-28 1390316c51fc938fbe7d9daf53a9c3a5a2f931b1

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/**app.wxss**/
.container {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 200rpx 0;
  box-sizing: border-box;
}