Last but not least, we need to edit the login.component.html file and add the <login-facebook></login-facebook> element to the end of our existing login form:

[...]

<div class="login-link">
    <a [routerLink]="['/register']">
        Don't have an account? Click here to create one!
    </a>
</div>
<login-externalproviders></login-externalproviders>

[...]

That way, the Login with Facebook button will be shown immediately after the standard login UI interface.