fix(接口测试): 修复windows和linux系统换行符切割的缺陷

--bug=1024736 --user=王孝刚
[接口测试]github#22450接口请求体form-data批量添加后字段存在换行导致接口无法正常测试
https://www.tapd.cn/55049933/s/1354971

api-test/frontend/src/business/automation/scenario/variable/VariableList.vue

@@ -331,7 +331,7 @@ export default {
     },
     _handleBatchVars(data) {
       if (data) {
-        let params = data.split('\n');
+        let params = data.split(/[(\r\n)\r\n]+/);
         let keyValues = [];
         params.forEach((item) => {
           if (item) {

api-test/frontend/src/business/definition/components/body/ApiBody.vue

@@ -350,7 +350,7 @@ export default {
     },
     batchSave(data) {
       if (data) {
-        let params = data.split('\n');
+        let params = data.split(/[(\r\n)\r\n]+/);
         let keyValues = [];
         params.forEach((item) => {
           if (item) {

api-test/frontend/src/business/definition/components/request/http/ApiHttpRequestForm.vue

@@ -507,7 +507,7 @@ export default {
     },
     batchSave(data) {
       if (data) {
-        let params = data.split('\n');
+        let params = data.split(/[(\r\n)\r\n]+/);
         let keyValues = [];
         params.forEach((item) => {
           if (item) {

framework/sdk-parent/frontend/src/components/environment/EnvironmentHttpConfig.vue

@@ -469,7 +469,7 @@ export default {
       this.$refs.batchAdd.open();
     },
     _handleBatchVars(data) {
-      let params = data.split("\n");
+      let params = data.split(/[(\r\n)\r\n]+/);
       let keyValues = [];
       params.forEach(item => {
         if (item) {

framework/sdk-parent/frontend/src/components/environment/commons/ApiScenarioVariables.vue

@@ -431,7 +431,7 @@ export default {
       return this.items.length - 1 !== index;
     },
     _handleBatchVars(data) {
-      let params = data.split('\n');
+      let params = data.split(/[(\r\n)\r\n]+/);
       let keyValues = [];
       params.forEach((item) => {
         if (item) {

project-management/frontend/src/business/menu/environment/components/EnvironmentHttpConfig.vue

@@ -477,7 +477,7 @@ export default {
       this.$refs.batchAdd.open();
     },
     _handleBatchVars(data) {
-      let params = data.split("\n");
+      let params = data.split(/[(\r\n)\r\n]+/);
       let keyValues = [];
       params.forEach(item => {
         if (item) {