fix(接口测试): 场景详情-场景导入-切换空间-项目名称较长时-下拉框显示太宽

--bug=1029114 --user=白奇 【接口测试】场景详情-场景导入-切换空间-项目名称较长时-下拉框显示太宽 https://www.tapd.cn/55049933/s/1420765

api-test/frontend/src/business/commons/TestCaseRelevanceBase.vue

@@ -38,7 +38,12 @@
         @change="changeWorkspace"
         class="ms-header-workspace"
         size="small">
-        <el-option v-for="(item, index) in workspaceList" :key="index" :label="item.name" :value="item.id" />
+        <el-option
+          v-for="item in workspaceList"
+          :key="item.id"
+          :label="item.name"
+          :value="item.id"
+          :title="item.name" />
       </el-select>
       <select-menu
         :data="projects"

test-track/frontend/src/business/plan/common/TestPlanRunModeWithEnv.vue

@@ -446,8 +446,6 @@ export default {
   max-height: 350px;
 }
 .env-container {
-  max-height: 400px;
-  overflow-y: auto;
   padding-bottom: 1px;
 }