message: fix: don't show busted label for unknown data types
diff: @@ -239,7 +239,7 @@ function ColumnCollectionTable({
  ) : (
  v
  ),
  - type: d => <Label>{d}</Label>,
  + type: d => (d ? <Label>{d}</Label> : null),
  is_dttm: checkboxGenerator,
  filterable: checkboxGenerator,
  groupby: checkboxGenerator,
  