ios【首页-消息预览区】自动滚动展示最新的未读条消息，滚动范围应该为5条

增加备注:  YCFC-597

备注详细内容

备注

trigger

comment-preview_link

fieldId

comment

fieldName

备注

rendererType

atlassian-wiki-renderer

issueKey

YCFC-597