fix(survey ) : 修复我的问卷搜索功能异常

- 修复点击搜索之后进入其他页面，然后返回会造成数据多次显示的问题

src/views/Survey/Index.vue

@@ -26,7 +26,7 @@
 </template>
 
 <script setup>
-import { onBeforeMount, ref } from 'vue';
+import { onBeforeMount, onUnmounted, ref } from 'vue';
 import NavSearch from '@/components/Search/Index.vue';
 import NewSurvey from '@/views/Home/components/NewSurvey/index.vue';
 import EmptyContainer from '@/views/Survey/components/EmptyContainer.vue';
@@ -60,6 +60,11 @@ onBeforeMount(() => {
   handleLoadSurveys();
 });
 
+onUnmounted(() => {
+  // 当组件卸载的时候，清空 survey 数据
+  survey.value = [];
+});
+
 function handleLoadSurveys() {
   form.value.page = form.value.page + 1;
   fetchSurveys(form.value);