fix(测试跟踪): 列表tooltip展示多条汇总问题

--bug=1024036 --user=宋昌昌 【测试跟踪】公共用例库，标签显示重叠 https://www.tapd.cn/55049933/s/1346334
--bug=1024040 --user=宋昌昌 【测试跟踪】用例编辑页-变更记录，变更前内容重复展示 https://www.tapd.cn/55049933/s/1346340

test-track/frontend/src/business/case/components/case/CaseChangeHistory.vue

@@ -36,10 +36,7 @@
           </div>
         </template>
       </ms-table-column>
-      <ms-table-column
-        prop="originalValue"
-        :label="$t('case.content_before_change')"
-      >
+      <ms-table-column prop="originalValue" :label="$t('case.content_before_change')" :show-overflow-tooltip="false">
         <template v-slot:default="scope">
           <div v-if="scope.row.details && scope.row.details.columns">
             <div v-for="detail in scope.row.details.columns" :key="detail.id">

test-track/frontend/src/business/case/components/public/PublicTestCaseList.vue

@@ -141,6 +141,7 @@
           :field="item"
           :fields-width="fieldsWidth"
           :label="$t('commons.tag')"
+          :show-overflow-tooltip="false"
           min-width="80">
           <template v-slot:default="scope">
             <el-tooltip class="item" effect="dark" placement="top">