can you add some good design to this "<nav class="navbar navbar-expand-lg navbar-dark bg-dark fixed-top" style="height: 4em;">
    <div class="container-fluid">
        <a class="navbar-brand mb-0 h1" href="{% url 'home' %}">Django Club</a>
        <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent"
            aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
            <span class="navbar-toggler-icon"></span>
        </button>
        <div class="collapse navbar-collapse" id="navbarSupportedContent">
            <ul class="navbar-nav me-auto mb-2 mb-lg-0">
                <li class="nav-item">
                    <a class="nav-link active" aria-current="page" href="#">Calendar</a>
                </li>
                <li class="nav-item">
                    <a class="nav-link active" aria-current="page" href="{% url 'admin' %}">Admin</a>
                </li>
                {% if user.is_authenticated %}
                <li class="nav-item dropdown">
                    <a class="nav-link dropdown-toggle active" href="#" role="button" data-bs-toggle="dropdown"
                        aria-expanded="false">Events</a>
                    <ul class="dropdown-menu">
                        <li><a class="dropdown-item" href="{% url 'event_lists' %}">Events List</a></li>
                        <li><a class="dropdown-item" href="{% url 'add-event' %}">Add Event</a></li>
                        <li><a class="dropdown-item" href="{% url 'my-events' %}">My Event</a></li>
                    </ul>
                </li>
                <li class="nav-item dropdown">
                    <a class="nav-link dropdown-toggle active" href="#" role="button" data-bs-toggle="dropdown"
                        aria-expanded="false">Downloads</a>
                    <ul class="dropdown-menu">
                        <li><a class="dropdown-item" href="{% url 'text-event' %}">Event Text File</a></li>
                        <li><a class="dropdown-item" href="{% url 'csv-event' %}">Event CSV File</a></li>
                        <li><a class="dropdown-item" href="{% url 'pdf-event' %}">Event Pdf File</a></li>
                    </ul>
                </li>
                <li class="nav-item">
                    <a class="nav-link active" aria-current="page" href="{% url 'logout' %}">Logout</a>
                </li>
                {% else %}
                <li class="nav-item">
                    <a class="nav-link active" aria-current="page" href="{% url 'event_lists' %}">Events</a>
                </li>
                <li class="nav-item">
                    <a class="nav-link active" aria-current="page" href="{% url 'login_user' %}">Login</a>
                </li>
                <li class="nav-item">
                    <a class="nav-link active" aria-current="page" href="{% url 'register_user' %}">Register</a>
                </li>
                {% endif %}
            </ul>
            {% if user.is_authenticated %}
            <form class="d-flex" role="search" method="POST" action="{% url 'search-events' %}">
                {% csrf_token %}
                <input class="form-control me-0" type="search" placeholder="Search Events" aria-label="Search"
                    name="searched" style="margin-top: 1em;">
                <button class="btn btn-dark" type="submit" style="margin-top: 1em;">Search</button>
            </form>
            {% endif %}
        </div>
    </div>
</nav>