fix(接口定义): 修复接口定义编辑页面展示不全的缺陷 (#17986)

--bug=1016841 --user=王孝刚 【接口测试】接口定义新建和编辑页面，下面的响应内容和备注被挡住了
https://www.tapd.cn/55049933/s/1244701

Co-authored-by: wxg0103 <727495428@qq.com>

frontend/src/business/components/api/definition/ApiDefinition.vue

@@ -985,7 +985,7 @@ export default {
 }
 
 /deep/ .el-main {
-  overflow: hidden;
+  overflow-y: auto;
 }
 
 /deep/ .el-tabs__header {

frontend/src/business/components/api/definition/components/EditCompleteContainer.vue

@@ -15,7 +15,7 @@
           :module-options="moduleOptions"
         />
       </ms-aside-container>
-      <ms-main-container class="ms-scenario-main-container" style="overflow: hidden">
+      <ms-main-container class="ms-scenario-main-container">
         <el-button-group v-if="currentApi.id" style="z-index: 10; position: fixed;">
           <el-button :class="{active: showApiList}" class="item" plain size="small" @click="changeTab('api')">
             API