Refactor the action "Imports" tab

Refactor the action "Imports" tab

The action import tab should include:

- all the info that is in the first tab the source ID ( especially the last execution date)

- source object should be exploded into workspace/model/module/view fields

- the data source ID should be available here as well

- an export button, just like on the first tab

- the ability the filter by all the existing fields