improved Modal with zoom and pagination. also implementing thumbnail generation

app/templates/artist_list.html

@@ -2,8 +2,7 @@
 {% block title %}Artists{% endblock %}
 
 {% block content %}
-<h1 style="text-align:center; margin-top: 1rem;">Artists</h1>
-
+<h1>Artists</h1>
 <div class="artist-grid">
   {% for artist in artist_data %}
     <a href="{{ url_for('main.artist_gallery', artist_name=artist.name) }}" class="artist-card-link">
@@ -12,7 +11,7 @@
         <div class="artist-preview">
           {% for image in artist.images %}
             <div class="artist-thumb"
-                 style="background-image: url('{{ url_for('main.serve_image', filename=image.filepath | replace('/images/', '')) }}');">
+                 style="background-image: url('{{ url_for('main.serve_image', filename=(image.thumb_path or image.filepath) | replace('/images/', '') ) }}');">
             </div>
           {% endfor %}
         </div>