Call photo_clipboard.apply_check_all after refreshing divs.

This was previously performed automatically deeper within clipboard.js,
but was optimized out recently.

frontends/etiquette_flask/templates/clipboard.html

@@ -192,6 +192,7 @@ function refresh_divs()
             holder.appendChild(photo_div)
         }
     }
+    photo_clipboard.apply_check_all();
     if (holder.childElementCount == 0)
     {
         holder.classList.add("hidden");