refactor: 测试跟踪首页关联用例数量tab出现滚动条

--bug=1013033 --user=陈建星 【测试跟踪】github#13332 低分辨率 首页 关联用例数量 统计名称建议全部展示 https://www.tapd.cn/55049933/s/1154517

frontend/src/business/components/track/home/components/RelevanceCaseCard.vue

@@ -13,20 +13,17 @@
       </el-aside>
 
       <el-main style="padding-left: 0px;padding-right: 0px;">
-        <div style="width: 300px;margin:0 auto">
-
         <el-row align="center">
-            <el-col :span="6" style="width:90px;padding: 5px;border-right-style: solid;border-right-width: 1px;border-right-color: #ECEEF4;">
+          <el-col :span="8" style="padding: 5px;border-right-style: solid;border-right-width: 1px;border-right-color: #ECEEF4;">
             <div class="count-info-div" v-html="relevanceCountData.apiCaseCountStr"></div>
           </el-col>
-            <el-col :span="6" style="width:90px;padding: 5px;border-right-style: solid;border-right-width: 1px;border-right-color: #ECEEF4;">
+          <el-col :span="8" style="padding: 5px;border-right-style: solid;border-right-width: 1px;border-right-color: #ECEEF4;">
             <div class="count-info-div" v-html="relevanceCountData.scenarioCaseStr"></div>
           </el-col>
-            <el-col :span="6" style="width:90px;padding: 5px;">
+          <el-col :span="8" style="padding: 5px;">
             <div class="count-info-div" v-html="relevanceCountData.performanceCaseCountStr"></div>
           </el-col>
         </el-row>
-        </div>
       </el-main>
     </el-container>
 
@@ -149,7 +146,8 @@ export default {
 }
 
 .count-info-div{
-  margin: 3px;
+  margin-top: 3px;
+  margin-bottom: 3px;
 }
 .count-info-div >>>p{
   font-size: 10px;