Fix Elasticsearch query for history with multi-tenant isolation

The overridden version of the page provider EVENTS_VIEW provided by the multi-tenant addon makes an equality check on the root path :

• https://github.com/nuxeo/nuxeo-jsf-ui/blob/master/code/nuxeo-multi-tenant-jsf/src/main/resources/OSGI-INF/contentviews-es-contrib.xml#L23-L24

instead of testing paths which start with the root path like it's done for the SQL version

• https://github.com/nuxeo/nuxeo-jsf-ui/blob/master/code/nuxeo-multi-tenant-jsf/src/main/resources/OSGI-INF/contentviews-contrib.xml#L20

=> only the events related to the root are returned.

The ES page provider must be fixed.