修复相册图片不能加载更多的bug

public/i

@@ -0,0 +1 @@
+/Users/wispx/Develop/Projects/lsky-pro/storage/app/uploads

resources/js/app.js

@@ -84,6 +84,7 @@ window.utils = {
                 },
                 beforeSend() {
                     props.loading = true;
+                    props.finished = false;
                     $btn.text(loadingText).addClass('disabled')
                 },
                 success(response) {