workflows: error message improvement

* Properly sets error messages upon unexpected errors during
  workflow execution.

* Integrates the error messages into the Holding Pen detailed
  view of an object as a panel.

Signed-off-by: Jan Aage Lavik <jan.age.lavik@cern.ch>
workflows: detailed record display

* Changes the wells to panels in the record detailed display.

Signed-off-by: Jan Aage Lavik <jan.age.lavik@cern.ch>
workflows: task results integration

* Adds integration of tasks results into the object model and
  detailed display.

* Tags filtering now keeps the tags when user updates the page by
  using session.

Co-authored-by: Guillaume Lastecoueres <PX9e@gmx.fr>
Signed-off-by: Jan Aage Lavik <jan.age.lavik@cern.ch>
workflows: changes tags placeholder text

Signed-off-by: Jan Aage Lavik <jan.age.lavik@cern.ch>
workflows: WIP actions refactor