Form validation tweaks (#20812)

* Always show ID field when editing a trigger

* use onBlur method for form validation

this will prevent the trigger ID from expanding too soon when a user is typing the friendly name

web/src/components/overlay/CreateTriggerDialog.tsx

@@ -258,6 +258,7 @@ export default function CreateTriggerDialog({
               nameLabel={t("triggers.dialog.form.name.title")}
               nameDescription={t("triggers.dialog.form.name.description")}
               placeholderName={t("triggers.dialog.form.name.placeholder")}
+              idVisible={!!trigger}
             />
 
             <FormField