[ML] Improving client side error handling (#76743)

* [ML] Improving client side error handling

* adding stacktrace to request errors

* copying error parsing to transforms

* update snapshot

* fixing jest tests

* adding test and removing debug log output

* updating translations

* rewriting error extracting code

* fixing tests

* removing message bar service

* removing test code

* updating translations

* combining job creation error handling

* refactoring error files

* updating test

* fixing bug in DFA deletion

* improving mml warning

Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>

x-pack/plugins/transform/common/utils/errors.ts

@@ -0,0 +1,31 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+export interface ErrorResponse {
+  body: {
+    statusCode: number;
+    error: string;
+    message: string;
+    attributes?: any;
+  };
+  name: string;
+}
+
+export function isErrorResponse(arg: any): arg is ErrorResponse {
+  return arg?.body?.error !== undefined && arg?.body?.message !== undefined;
+}
+
+export function getErrorMessage(error: any) {
+  if (isErrorResponse(error)) {
+    return `${error.body.error}: ${error.body.message}`;
+  }
+
+  if (typeof error === 'object' && typeof error.message === 'string') {
+    return error.message;
+  }
+
+  return JSON.stringify(error);
+}