Improve element import flow

src/Application/Twig/AppExtension.php

src/Biopen/GeoDirectoryBundle/Admin/ImportDynamicAdmin.php

...yBundle/Controller/Admin/ImportDynamicAdminController.php

src/Biopen/GeoDirectoryBundle/Document/Import.php

...dmin/core_custom/custom-fields/mapping-ontology.html.twig

...dmin/core_custom/custom-fields/mapping-taxonomy.html.twig

.../Resources/views/admin/edit/edit_import_dynamic.html.twig

...urces/views/admin/partials/list__action_refresh.html.twig

...oDirectoryBundle/Services/ElementImportMappingService.php

web/test.json