Fields in View template views-view-fields--blog-posts.html.twig

Question

I have a view called blog_posts, which selects the following fields: title (linking to node), Picture (an image field), Body and Authored on.

I have created a custom fields template views-view-fields--blog-posts.html.twig, which displays each node. Here is the content:

        <!-- blog post -->
        <div class="col col-md-4 col-sm-12 col-xs-12">
            <div class="card blog">
                <!-- Blog image here -->
                <img class="img-responsive" src="{{ file_url(fields.field_picture.0.entity.uri.value) }}">
                <div class="blog-content">
                    <!-- Edit title and info here -->
                    <div class="blog-title">
                        <h6 class="text-capitalize">{{ fields.title.content }}</h6>
                        <ul>
                            <li><i class="ion-calendar"></i>{{ fields.authored_on.content }}</li>
                        </ul>
                        <!-- Add link of full post -->
                        <a href="" class="btn-floating waves-effect waves-light btn-large more-btn custom-btn"
                           data-aos="zoom-in" data-aos-delay="200">
                            <i class="ion-android-more-horizontal"></i></a>
                    </div>
                    <!-- some line of post -->
                    <div class="text-left">
                        {{ fields.body.content }}
                    </div>
                </div>
            </div>
        </div>

Currently it is correctly displaying the title and the body.

The picture field is not displaying. I adapted {{ file_url(fields.field_picture.0.entity.uri.value) }} from a node template where it is displaying a picture correctly. Ho{{ file_url(fields.field_picture.0.entity.uri.value) }}w can I make it work in a view template?

The authored on field, {{ fields.authored_on.content }} should display the posted date of the node.

Finally, I would like to put the URL of the node in the link. Is it possible to get this from the data I have, or do I need to add a field for it?

Thanks for your help,

James