org.nuxeo.ecm.platform.forms.layout.io.plugins.MainContribution Component that provides main contributions to the basic widget converters needed for export. @version 5.5 standalone org.nuxeo.ecm.platform.forms.layout.io.plugins.WidgetLabeli18nConverter standalone org.nuxeo.ecm.platform.forms.layout.io.plugins.WidgetDirectoryItemsConverter standalone org.nuxeo.ecm.platform.forms.layout.io.plugins.CoverageWidgetConverter standalone org.nuxeo.ecm.platform.forms.layout.io.plugins.SubjectsWidgetConverter