review：bpm 方法统一使用 function，代码样式

apps/web-antd/src/views/bpm/model/form/modules/simple-model-design.vue

@@ -37,4 +37,3 @@ const handleSuccess = (data?: any) => {
     />
   </ContentWrap>
 </template>
-<style lang="scss" scoped></style>

apps/web-antd/src/views/bpm/processInstance/detail/modules/operation-button.vue

@@ -1389,4 +1389,3 @@ defineExpose({ loadTodoTask });
   <!-- 签名弹窗 -->
   <Signature ref="signRef" @success="handleSignFinish" />
 </template>
-<style lang="scss" scoped></style>