Fixes misalignment of import dashboard

[paul-m]

Fixes [issue#]

Describe your changes

The import status dashboard has suffered from misalignment issues because datastore nodes can have the publish status of 'hidden.'
This gets set in CSS as class=hidden, which just hides the table cell.

The fix is to change the class used to style the table cell.

QA Steps

• Set up a sample content site:

ddev dkan-site-install
ddev drush pm-enable sample_content
ddev drush dkan:sample-content:create
ddev drush cron
ddev drush cron

• Log in: ddev drush uli
• Visit the import status page at admin/dkan/datastore/status
• Pick a dataset. I suggest Florida Bike Lanes.
• Visit it's edit page... DKAN -> Datasets -> find bike lanes -> click Edit.
• Change its published status to 'Published (hidden)'
• Revisit the import status page (admin/dkan/datastore/status). The table will not be misaligned.

Checklist before requesting review

If any of these are left unchecked, please provide an explanation

• I have updated or added tests to cover my code
• I have updated or added documentation

[dmundra]

Solution looks good and works.