Repair Select2 Views Widget

Problem/Motivation

Select 2 widget not working:
- widget is not being rendered
- Selections already made are being rendered

Steps to reproduce

- Visit entity form display page that uses this feature (select2 views)
- Look at the entity select region
Expected:
- widget should be visible
- Table of relevant selected entity reference view should be visible
Actual:
- Widget not visible
- Table renders corerctly

Proposed resolution

Set the form element to correctly render the select 2 widget correctly.
Confirm that the AJAX fires properly and replaces the table sub element.