message: Fixes Responsive thumbnails in content list pages
diff: <article class="list-article">
  {{ if (or .Params.featured_image .Params.featured_image_url) }}
  - {{ $img_src := "" }}
  + <div class="col25 article-featured-image">
  + <a href="{{ .Permalink }}">
  {{ if .Params.featured_image }}
  - {{ $img_src = (partial "functions/imgURL" (dict "page" .Page "name" (.Params.featured_image) "command" "Resize" "options" "230x")) }}
  + <img srcset="
  + {{- partial "functions/imgURL" (dict "page" .Page "name" .Params.featured_image "command" "Resize" "options" "280x") }} 280w,
  + {{- partial "functions/imgURL" (dict "page" .Page "name" .Params.featured_image "command" "Resize" "options" "375x") }} 375w,
  + {{- partial "functions/imgURL" (dict "page" .Page "name" .Params.featured_image "command" "Resize" "options" "684x") }} 684w,
  + {{- partial "functions/imgURL" (dict "page" .Page "name" .Params.featured_image "command" "Resize" "options" "874x") }} 874w,
  + {{- partial "functions/imgURL" (dict "page" .Page "name" .Params.featured_image "command" "Resize" "options" "230x") }} 230w
  + "
  + sizes="(max-width: 320px) 280px, (max-width: 425px) 375px, (max-width: 768px) 684px, (max-width: 979px) 874px, 230px"
  + src="{{ (partial "functions/imgURL" (dict "page" .Page "name" .Params.featured_image)) }}">
  {{ else }}
  - {{ $img_src = .Params.featured_image_url }}
  + <img class="image" src="{{ .Params.featured_image_url }}" alt="{{ .Title }}">
  {{ end }}
  - <div class="col25 article-featured-image"><a href="{{ .Permalink }}"><img class="image" src="{{ $img_src }}" alt="{{ .Title }}"></a></div>
  + </a>
  + </div>
  {{ end }}
  <div class="padded {{ if (or .Params.featured_image .Params.featured_image_url) }}col75{{end}}">
  <a href="{{ .Permalink }}">
  