Update Web UI elements to use WriteVersion permission

The following elements are using the Write/Everything permission but could be using WriteVersion:

• nuxeo-document-versions (see code)
• nuxeo-document-create-version (see code)
• nuxeo-document-publications (see code)
• nuxeo-unpublish-button (see code)

Some of the elements might not work as expected, so the plan is to document those that did not work and exclude them from the scope of this ticket. We will review them later.