feat: initialize Angular application with basic structure and configuration

- Add app configuration in app.config.ts
- Create main application component with routing support
- Implement basic HTML structure in app.html
- Add global styles and Tailwind CSS integration
- Set up routing with an empty routes array
- Create unit tests for the app component
- Add TypeScript configuration files for the application and tests
- Include index.html as the entry point for the application
- Bootstrap the application in main.ts

tsconfig.app.json

@@ -0,0 +1,15 @@
+/* To learn more about Typescript configuration file: https://www.typescriptlang.org/docs/handbook/tsconfig-json.html. */
+/* To learn more about Angular compiler options: https://angular.dev/reference/configs/angular-compiler-options. */
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "outDir": "./out-tsc/app",
+    "types": []
+  },
+  "include": [
+    "src/**/*.ts"
+  ],
+  "exclude": [
+    "src/**/*.spec.ts"
+  ]
+}