云盘：修复新建文件夹

src/views/doc/manage.vue

@@ -347,10 +347,6 @@ function onLoadMatterList(){
 }
 //----------for dir-----------
 function createDir(){
-  if(matterList.value.length>0){
-    //防止多次新建目录
-    if (matterList.value[0].name=="") return;
-  }
   matterList.value?.unshift({
     name:"",
     userUuid:uid,