Merge pull request trungvose#81 from darxx/Angular11-update

Angular11 update

Author: trungvose

frontend/karma.conf.js

@@ -9,13 +9,13 @@ module.exports = function (config) {
       require('karma-jasmine'),
       require('karma-chrome-launcher'),
       require('karma-jasmine-html-reporter'),
-      require('karma-coverage-istanbul-reporter'),
+      require('karma-coverage'),
       require('@angular-devkit/build-angular/plugins/karma')
     ],
     client: {
       clearContext: false // leave Jasmine Spec Runner output visible in browser
     },
-    coverageIstanbulReporter: {
+    coverageReporter: {
       dir: require('path').join(__dirname, './coverage/frontend'),
       reports: ['html', 'lcovonly', 'text-summary'],
       fixWebpackSourcePaths: true