Update settings.php

[bookstack] / resources / views / books / list-item.blade.php

<a href="{{ $book->getUrl() }}" class="book entity-list-item" data-entity-type="book" data-entity-id="{{$book->id}}">
    <div class="entity-list-item-image bg-book" style="background-image: url('{{ $book->getBookCover() }}')">
        @icon('book')
    </div>
    <div class="content">
        <h4 class="entity-list-item-name break-text">{{ $book->name }}</h4>
        <div class="entity-item-snippet">
            <p class="text-muted break-text mb-s">{{ $book->getExcerpt() }}</p>
        </div>
    </div>
</a>