upgrade to Angular 12

Author: jhades

README.md

@@ -3,7 +3,7 @@
 
 This repository contains the code of the [Angular Core Deep Dive](https://angular-university.io/course/angular-course).
 
-This course repository is updated to Angular v11:
+This course repository is updated to Angular v12:
 
 ![Angular Core Deep Dive](https://s3-us-west-1.amazonaws.com/angular-university/course-images/angular-core-in-depth-small.png)
 

angular.json

@@ -21,7 +21,6 @@
         "build": {
           "builder": "@angular-devkit/build-angular:browser",
           "options": {
-            "aot": true,
             "outputPath": "dist/angular-course",
             "index": "src/index.html",
             "main": "src/main.ts",
@@ -47,7 +46,13 @@
                 "input": "node_modules/document-register-element/build/document-register-element.js",
                 "inject": true
               }
-            ]
+            ],
+            "vendorChunk": true,
+            "extractLicenses": false,
+            "buildOptimizer": false,
+            "sourceMap": true,
+            "optimization": false,
+            "namedChunks": true
           },
           "configurations": {
             "production": {
@@ -67,13 +72,11 @@
               "outputHashing": "all",
               "sourceMap": false,
               "namedChunks": false,
-              "aot": true,
               "extractLicenses": true,
               "vendorChunk": false,
               "buildOptimizer": true
             },
             "fr": {
-              "aot": true,
               "budgets": [
                 {
                   "type": "anyComponentStyle",