feat: 更新文件上传项组件的边框颜色样式

src/__fk-inputs__/components/file-upload/file-upload-item.vue

@@ -47,7 +47,7 @@ const bageSeverity = computed<BadgeProps['severity']>(() => {
 </script>
 
 <template>
-  <div class="border p-2 rounded-md flex flex-wrap items-center gap-2">
+  <div class="border border-[var(--p-fileupload-border-color)] p-2 rounded-md flex flex-wrap items-center gap-2">
     <slot name="image">
       <img
         :src="url"