fix(接口测试): 修复CSV内容过大预览卡住问题

--bug=1009420 --user=赵勇 [BUG] 场景公参里上传csv文件，超过20M的文件，直接卡死 #8338 https://www.tapd.cn/55049933/s/1089364

frontend/src/business/components/api/automation/scenario/variable/EditCsv.vue

@@ -59,6 +59,7 @@
         </el-row>
       </el-tab-pane>
       <el-tab-pane :label="$t('schema.preview')" name="preview">
+        <div v-if="showMessage">{{ $t('variables.csv_message') }}</div>
         <el-table
           :data="previewData"
           style="width: 100%"
@@ -97,6 +98,7 @@
         previewData: [],
         columns: [],
         allData: [],
+        showMessage: false,
         rules: {
           name: [
             {required: true, message: this.$t('test_track.case.input_name'), trigger: 'blur'},
@@ -123,7 +125,11 @@
         this.loading = false;
       },
       step(results, parser) {
-        this.allData.push(results.data);
+        if(this.allData.length < 2000) {
+          this.allData.push(results.data);
+        }else{
+          this.showMessage = true;
+        }
       },
 
       handleClick() {

frontend/src/i18n/en-US.js

@@ -2508,7 +2508,8 @@ export default {
     timeout: "timeout",
   },
   variables: {
-    cvs_info: "Only CSV files can be uploaded",
+    ƒ: "Only CSV files can be uploaded",
+    csv_message: "2000 items are displayed by default, and the complete content can be downloaded and viewed.",
     end: "end",
     start: "start",
     increment: "increment",

frontend/src/i18n/zh-CN.js

@@ -2512,6 +2512,7 @@ export default {
   },
   variables: {
     cvs_info: "只能上传CSV文件",
+    csv_message: "默认展示2000条，完整的内容可点击下载查看。",
     end: "结束",
     start: "开始",
     increment: "增量",

frontend/src/i18n/zh-TW.js

@@ -2512,6 +2512,7 @@ export default {
   },
   variables: {
     cvs_info: "只能上傳CSV文件",
+    csv_message: "默認展示2000條，完整的內容可點擊下載查看。",
     end: "結束",
     start: "開始",
     increment: "增量",