* fix dataset editor for updating table_name and schema
* update test
* remove table_name from restrict list
* fix pylint
* fix cypress test
* fix test
* fix: change database save in DatasourceEditor
This addresses the issue where pointing a datasource to another database
in the datasource editor is not reflected.
Also addresses:
- a minorcosmetic issue in the datasource editor.
- user/owners list not getting populated
* tests