refactor: adjust image loading in weather art view

- Update image link to use original blob instead of a resized variant
- Remove the resizing option for the image tag for better fidelity
- Modify CSS class for a smoother hover effect without scaling issues

This refactor improves the image loading behavior by allowing
full-resolution images to be loaded directly. The previous resizing
was limiting image quality, and this change enhances user experience
when viewing weather art.

app/views/weather_arts/show.html.erb

@@ -29,15 +29,15 @@
               <div class="gallery" data-controller="photo-swipe-lightbox">
                 <div data-photo-swipe-lightbox-target="gallery" class="h-full">
                   <% blob = @weather_art.image_blob %>
-                  <%= link_to rails_blob_path(blob.variant(resize_to_fit: [896, 512])),
+                  <%= link_to rails_blob_path(blob),
                               data: {
                                 pswp_src: rails_blob_url(blob),
                                 pswp_caption: 'Weather Art',
                                 pswp_width: 1792,
                                 pswp_height: 1024
                               } do %>
-                    <%= image_tag @weather_art.image.variant(resize_to_fill: [896, 512]),
+                    <%= image_tag @weather_art.image,
-                                  class: "object-cover w-full h-full transition-transform scale-95 transform hover:scale-105 ease-in-out" %> <!-- 改变缩放效果 -->
+                                  class: "object-cover w-full h-full transition-transform transform hover:scale-105 ease-in-out" %> <!-- 改变缩放效果 -->
                   <% end %>
                 </div>
               </div>