Fix onClick compile error in ServiceInfoAction

Author: jackfreem

service/src/main/kotlin/app/cash/backfila/ui/pages/ServiceInfoAction.kt

@@ -152,7 +152,7 @@ class ServiceInfoAction @Inject constructor(
                     method = FormMethod.post
                     button(classes = "inline-flex items-center px-4 py-2 border border-red-300 text-sm font-medium rounded-md text-red-700 bg-white hover:bg-red-50") {
                       type = ButtonType.submit
-                      onClick = "return confirm('Are you sure you want to delete the $service ($variant) service variant? This cannot be undone.')"
+                      attributes["onclick"] = "return confirm('Are you sure you want to delete the $service ($variant) service variant? This cannot be undone.')"
                       +"Delete Variant"
                     }
                   }