fix: 修复组态大屏上传组件无法预览缩略图

@@ -47,7 +47,7 @@
       transformFile?: (file: File) => string | Blob | Promise<string | Blob | File>;
       api: (file: string | Blob | Promise<string | Blob | File>) => Promise<FileItem>;
       overFileLimitHiddenUploadEntry?: boolean;
-      beforeUpload: (file: File, fileList: File[]) => boolean;
+      beforeUpload?: (file: File, fileList: File[]) => boolean;
     }>(),
     {
       fileList: () => [],
@@ -146,7 +146,7 @@
     :remove="handleRemove"
   >
     <Spin
-      v-if="!(fileList.length >= getMaxFileLimit) || overFileLimitHiddenUploadEntry"
+      v-if="!(fileList.length >= getMaxFileLimit && overFileLimitHiddenUploadEntry)"
       :spinning="loading"
     >
       <div class="w-full h-full flex flex-col justify-center content-center">

@@ -91,7 +91,7 @@ export const formSchema: FormSchema[] = [
     valueField: 'fileList',
     componentProps: () => {
       return {
-        // listType: 'picture-card',
+        listType: 'picture-card',
         maxFileLimit: 1,
         api: async (file: File) => {
           try {

@@ -57,7 +57,7 @@ export const formSchema: FormSchema[] = [
     valueField: 'fileList',
     componentProps: () => {
       return {
-        // listType: 'picture-card',
+        listType: 'picture-card',
         maxFileLimit: 1,
         api: async (file: File) => {
           try {