Bug 26553: Fix kohaTable call in TrainsShow

It's the only occurrence in Vue components

Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>

koha-tmpl/intranet-tmpl/prog/js/vue/components/Preservation/TrainsShow.vue

@@ -598,7 +598,7 @@ export default {
             let train = this.train;
             let updateSelectedItems = this.updateSelectedItems;
 
-            let table = KohaTable(table_id, {
+            let table = $("#" + table_id).kohaTable({
                 data: item_table.data,
                 ordering: false,
                 autoWidth: false,