DocTable columns Map/Delete
- Currently we need to click on the Button Trash, the issue is sometimes we "forget" to click on it. Then execute the request to delete the document directly, the Trash button would clean the current table only
- add [ALL] to map/stop all docs in the table
- mimic NgramsTable Columns Map/Stop behavior: 3 possiblities, only click once to change both (try it to better understand) and adapt change of the Backend API
- anoe: change backend api and database schema