style(接口测试): 修复自定义请求推荐断言弹窗问题

--bug=1033104 --user=赵勇 【接口测试】场景里添加了自定义请求，推荐jsonpath的时候推荐窗口在自定义请求的下面一层 https://www.tapd.cn/55049933/s/1446679

Signed-off-by: fit2-zhao <yong.zhao@fit2cloud.com>

api-test/frontend/src/business/automation/scenario/EditApiScenario.vue

@@ -495,8 +495,9 @@
             v-if="type !== 'detail'"
             :visible.sync="customizeVisible"
             :destroy-on-close="true"
-            direction="ltr"
+            direction="rtl"
             :withHeader="false"
+            :z-index="400"
             :title="$t('api_test.automation.customize_req')"
             style="overflow: auto"
             :modal="false"
@@ -898,7 +899,8 @@ export default {
       this.initPlugins();
     });
     this.result = getEnvironmentByProjectId(this.projectId).then((response) => {
-      this.environments = response.data;});
+      this.environments = response.data;
+    });
     this.getDefaultVersion();
   },
   mounted() {
@@ -2971,7 +2973,6 @@ export default {
   vertical-align: center;
 }
 
-
 :deep(.ms-main-container) {
   padding: 5px 5px 5px 10px;
 }