message: fix download button
diff: @@ -22,7 +22,6 @@ import React, { PureComponent, PropTypes } from 'react'
  import { connect } from 'react-redux'
  import Button from 'antd/lib/button'
  -
  import { loadDashboardShareLink, loadWidgetShareLink } from '../../containers/Dashboard/actions'
  export class DownLoadCsv extends PureComponent {
  @@ -65,9 +64,10 @@ export class DownLoadCsv extends PureComponent {
  }
  render () {
  + const { shareInfoLoading } = this.props
  return (
  <div>
  - <Button type="primary" icon="download" size="default" onClick={() => this.props.onDownloadCsv()}>Download CSV</Button>
  + <Button type="primary" disabled={shareInfoLoading} icon="download" size="default" onClick={() => this.props.onDownloadCsv()}>Download CSV</Button>
  </div>
  )
  }
  