src/app/ui/navbar/navbar.component.html

<nav class="navbar navbar-dark bg-dark px-4 sticky-top">
    <span class="navbar-brand">
        <img alt="NLPCraft" class="logo" src="assets/logo.gif">
    </span>
    <div>
        <ul *ngIf="loggedIn" class="navbar-nav ml-auto">
            <li class="nav-item">
                <a (click)="logout()" class="nav-link" href="javascript:">
                    <fa-icon icon="sign-out-alt"></fa-icon>
                    Logout
                </a>
            </li>
        </ul>
    </div>
</nav>