feat: add responsive image support (#1283)

* feat: create responsive-image helper

* feat: new responsive-image helper

* feat: Implement responsive image rendering in page content using a new partial and configure image processing widths.

* feat: add `sizes` attribute for enhanced image responsiveness

* feat: add responsive image to page header too

* Check for `.Enabled` before processing image

* style: remove wrong article-list--tile width and height

* feat: add `helper/thumbnail-image` for responsive thumbnails

* feat: enable content image processing and update responsive image `sizes` attributes for improved display.

* fix: get src from the attributes so external image can work correctly

* fix: add missing data-title-escaped

* Update layouts/_partials/article/components/header.html

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* feat: remove default `true` for thumbnail resize parameter.

* Update layouts/_markup/render-image.html

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update layouts/_partials/helper/thumbnail-image.html

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* add original width and height to thumbnail pictures, for case that resize is not enabled

* Update layouts/_partials/helper/thumbnail-image.html

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

layouts/_partials/article-list/tile.html

@@ -3,8 +3,19 @@
     <a href="{{ .context.RelPermalink }}">
         {{ if $image }}
         <div class="article-image">
-            <img src="{{ $image.Permalink }}" width="{{ $image.Width }}" height="{{ $image.Height }}" loading="lazy"
-                alt="Featured image of post {{ .context.Title }}">
+            {{ partial "helper/thumbnail-image" (dict 
+                "Resource" $image.Resource
+                "Width" 250
+                "Height" 150
+                "Resize" .context.Site.Params.ImageProcessing.Thumbnail.Enabled
+                "Attributes" (dict
+                    "src" $image.Permalink
+                    "alt" (printf "Featured image of post %s" .context.Title)
+                    "loading" "lazy"
+                    "width" $image.Width
+                    "height" $image.Height
+                )
+            ) }}
         </div>
         {{ end }}