Fix nuxeo-layout importing twice document layouts when navigating from a Folderish to a non-Folderish doc

<nuxeo-slot-content name="documentViewPage" slot="DOCUMENT_VIEWS_PAGES" order="10">
  <template>
    <nuxeo-filter document="[[document]]" expression="document.facets.indexOf('Folderish') === -1
                                                   && document.facets.indexOf('Collection') === -1">
      <template>
        <nuxeo-document-page name="view" document="[[document]]"></nuxeo-document-page>
      </template>
    </nuxeo-filter>
  </template>
</nuxeo-slot-content>

<nuxeo-slot-content name="documentCollapsiblePage" slot="DOCUMENT_VIEWS_PAGES" order="10">
  <template>
    <nuxeo-filter document="[[document]]" facet="Folderish,Collection">
      <template>
        <nuxeo-collapsible-document-page name="view" document="[[document]]"></nuxeo-collapsible-document-page>
      </template>
    </nuxeo-filter>
  </template>
</nuxeo-slot-content>