style(接口测试): 小屏幕报告样式显示换行优化

--bug=1018725 --user=赵勇 【接口测试】任务中心查看测试报告，窗口宽度不够的时候会显示错位 https://www.tapd.cn/55049933/s/1274837

api-test/frontend/src/business/automation/report/ApiReportDetail.vue

@@ -20,7 +20,7 @@
             <!-- content header chart -->
             <ms-metric-chart :content="content" :totalTime="totalTime" :report="report"/>
 
-            <el-tabs v-model="activeName" @tab-click="handleClick" style="min-width: 1000px">
+            <el-tabs v-model="activeName" @tab-click="handleClick" style="min-width: 1500px">
               <!-- all step-->
               <el-tab-pane label="All" name="total">
                 <ms-scenario-results

api-test/frontend/src/business/automation/report/ApiReportViewHeader.vue

@@ -233,6 +233,6 @@ export default {
 }
 
 .report-header {
-  min-width: 1000px;
+  min-width: 1500px;
 }
 </style>

api-test/frontend/src/business/automation/report/components/MetricChart.vue

@@ -318,6 +318,7 @@ export default {
 <style scoped>
 .metric-container {
   padding: 5px 10px;
+  min-width: 1500px;
 }
 
 .metric-container #chart {