commit for stable version of angular 11

Author: scott1905

angular.json

@@ -13,6 +13,9 @@
         "build": {
           "builder": "@angular-devkit/build-angular:browser",
           "options": {
+            "allowedCommonJsDependencies": [
+              "ng2-codemirror"
+            ],
             "outputPath": "dist/angular-fusioncharts",
             "index": "src/index.html",
             "main": "src/main.ts",
@@ -38,7 +41,6 @@
               "optimization": true,
               "outputHashing": "all",
               "sourceMap": false,
-              "extractCss": true,
               "namedChunks": false,
               "aot": true,
               "extractLicenses": true,