This project was generated with Angular CLI version 14.1.3.
Don't forget to install your node_modules before starting (npm install).
Run ng serve for a dev server. Navigate to http://localhost:4200/. The application will automatically reload if you change any of the source files.
Run ng build to build the project. The build artifacts will be stored in the dist/ directory.
As you may have seen if you already started the app, a simple home page containing a logo, a title and a button is available. If you take a look at its code (in the home.component.html) you will see that an external UI library is already configured in the project.
This library is @angular/material, it's one of the most famous in the angular ecosystem. As you can see on their docs (https://material.angular.io/), it contains a lot of highly customizable components that will help you design your interfaces quickly.
Note: I recommend to use material however it's not mandatory, if you prefer you can get ride of it.
Good luck!