 href="#sidebar-authentication"
                            data-bs-toggle="dropdown"
                            data-bs-auto-close="outside"
                            role="button"
                            aria-expanded="false"
                          >
                            Authentication
                          </a>
                          <div class="dropdown-menu">
                            <a href="./sign-in.html" class="dropdown-item"> Sign in </a>
                            <a h