fix needlogin

@@ -7,7 +7,7 @@
         :action="action"
         :simultaneous-uploads="1"
         :value="file"
-        @file-added="filesAdded"
+        @files-added="filesAdded"
         @file-submitted="fileSubmit"
         @file-error="fileError"
       >
@@ -62,7 +62,6 @@ export default {
       const maxSize = 10 * 1024 * 1024; // 10M
 
       for (let file of files) {
-
         if (file.size > maxSize) {
           file.ignore = true;
           hasIgnore = true;