EHN: trigger initialization of select-picker in form_panel

src/core/js/form_panel.js

@@ -74,6 +74,7 @@ var form_panel = new function () {
             if (panel.find("form").length === 0) {
                 const form = form_elements.make_form(form_config);
                 panel.append(form);
+                $(form).find(".selectpicker").selectpicker();
 
                 form.addEventListener("caosdb.form.cancel",
                     (e) => form_panel.destroy_form_panel(panel),