message: chore: make datasource search input sticky
diff: @@ -131,7 +131,8 @@ const DatasourceContainer = styled.div`
  color: ${({ theme }) => theme.colors.grayscale.light1};
  }
  .form-control.input-sm {
  - margin-bottom: 0;
  + width: calc(100% - ${({ theme }) => theme.gridUnit * 2}px);
  + margin: ${({ theme }) => theme.gridUnit * 2}px auto;
  }
  .type-label {
  font-weight: ${({ theme }) => theme.typography.weights.light};
  @@ -182,13 +183,13 @@ const DataSourcePanel = ({
  actions={actions}
  formData={datasourceControl.mapStateToProps}
  />
  - <div className="field-selections">
  <input
  type="text"
  onChange={search}
  className="form-control input-sm"
  placeholder={t('Search Metrics & Columns')}
  />
  + <div className="field-selections">
  <Collapse
  bordered={false}
  defaultActiveKey={['metrics', 'column']}
  