CRM：合同的 code review

(cherry picked from commit 956f19d9d0)

src/views/crm/customer/index.vue

@@ -339,10 +339,14 @@ const handleDelete = async (id: number) => {
     await getList()
   } catch {}
 }
+
+/** 导入按钮操作 */
+// TODO @puhui999：importFormRef 简化下
 const customerImportFormRef = ref<InstanceType<typeof CustomerImportForm>>()
 const handleImport = () => {
   customerImportFormRef.value?.open()
 }
+
 /** 导出按钮操作 */
 const handleExport = async () => {
   try {