Merge branch 'summernote' of github.com:noesya/osuny into summernote

app/assets/stylesheets/admin/preview.sass

 .preview
     img
+        height: auto
         max-width: 100%

app/views/admin/communication/website/posts/show.html.erb

@@ -37,7 +37,7 @@
                   <%= number_to_human_size embed.metadata['filesize'] %>
                 </p>
                 <%= link_to t('download'),
-                            rails_blob_url(embed, disposition: 'attachment', filename: embed.filename),
+                            rails_blob_url(embed.blob, disposition: 'attachment', filename: embed.filename),
                             class: 'btn btn-xs btn-light' %>
               </div>
             </div>