style(search.css): 修改搜索页面图片适应方式为contain

public/themes/dist_static/static/css/search.css

@@ -136,7 +136,7 @@
   display: block;
   width: 100%;
   height: 100%;
-  object-fit: cover;
+  object-fit: contain;
   transition: transform var(--duration-normal) var(--easing);
 }
 .sr-item__media:hover img {