workflows: bug fix and holdingpen ergonomy

* Fixes a bug about the creation date of snapshot.

* Fixes not taking snapshot when continue a workflow.

* Fixes the order in the history.

* Removes details column.

* Adds details when clicking on the title.

* Hides search field of the datatable.

* Add a mapping to convert Object version to their correct
  printable text.

Signed-off-by: Guillaume Lastecoueres <guillaume.lastecoueres@cern.ch>