Translate life cycle state in Search content views

Currently the life cycle state is displayed with the stored value, which is only capitalized

<span class="capitalize">[[item.state]]</span>

We should translate the key to use the labels from the messages.properties

This is visible in several search screens:

• nuxeo-default-search-result.html,
• nuxeo-default-results.html
• nuxeo-document-content.html
• nuxeo-expired-search-results.html
• nuxeo-nxql-search-results.html