Update Angular 15.1.2 & React dependencies

Author: ganatan

README.md

@@ -12,7 +12,7 @@ it's part of a repo series designed
 
 to create a **Web Application with Angular 14**
 
-* Featuring [**Angular 15.0.1**](https://github.com/angular/angular/releases) & [**Angular CLI 15.0.1**](https://github.com/angular/angular-cli/releases/)
+* Featuring [**Angular 15.1.2**](https://github.com/angular/angular/releases) & [**Angular CLI 15.1.3**](https://github.com/angular/angular-cli/releases/)
 
 
 * See the [**Live demo**](#angular-live-demo), Test the repo with [**Quick start**](#angular-quick-start) and for more information Read the step by step [**Tutorial**](#angular-tutorial) or read the [**Getting started**](#angular-getting-started)

angular/angular.json

@@ -23,7 +23,9 @@
             "assets": [
               "src/favicon.ico",
               "src/assets",
-              "src/manifest.webmanifest"
+              "src/manifest.webmanifest",
+              "src/sitemap.xml",
+              "src/robots.txt"
             ],
             "styles": [
               "node_modules/@fortawesome/fontawesome-free/css/all.min.css",