Fixed u-tests build

Author: tsv2013

angular.json

@@ -102,7 +102,7 @@
             ],
             "styles": [
               "src/styles.css",
-              "node_modules/survey-core/defaultV2.css",
+              "node_modules/survey-core/survey-core.css",
               "node_modules/survey-creator-core/survey-creator-core.css"
             ],
             "assets": [

src/test.ts

@@ -1,11 +1,11 @@
 // This file is required by karma.conf.js and loads recursively all the .spec and framework files
 
-import 'zone.js/dist/long-stack-trace-zone';
-import 'zone.js/dist/proxy.js';
-import 'zone.js/dist/sync-test';
-import 'zone.js/dist/jasmine-patch';
-import 'zone.js/dist/async-test';
-import 'zone.js/dist/fake-async-test';
+// import 'zone.js/dist/long-stack-trace-zone';
+// import 'zone.js/dist/proxy.js';
+// import 'zone.js/dist/sync-test';
+// import 'zone.js/dist/jasmine-patch';
+// import 'zone.js/dist/async-test';
+// import 'zone.js/dist/fake-async-test';
 import { getTestBed } from '@angular/core/testing';
 import {
   BrowserDynamicTestingModule,