refactor(缺陷管理): 缺陷处理人表头添加提示

--bug=1042906 --user=宋昌昌 【测试计划】缺陷处理人被从项目/组织/系统删除-查看处理人字段应该继续显示处理人名称 https://www.tapd.cn/55049933/s/1547914

frontend/src/views/bug-management/index.vue

@@ -70,6 +70,17 @@
         <template #statusName="{ record }">
           {{ record.statusName || '-' }}
         </template>
+        <template #handleUserTitle>
+          <div class="flex items-center text-[var(--color-text-3)]">
+            {{ t('bugManagement.handleMan') }}
+            <a-tooltip :content="t('bugManagement.handleManTips')" position="right">
+              <icon-question-circle
+                class="ml-[4px] text-[var(--color-text-4)] hover:text-[rgb(var(--primary-5))]"
+                size="16"
+              />
+            </a-tooltip>
+          </div>
+        </template>
       </MsBaseTable>
     </div>
   </MsCard>
@@ -315,7 +326,7 @@
       title: 'bugManagement.status',
       dataIndex: 'status',
       width: 100,
-      showTooltip: true,
+      showTooltip: false,
       slotName: 'statusName',
       filterConfig: {
         options: [],
@@ -328,6 +339,7 @@
       title: 'bugManagement.handleMan',
       dataIndex: 'handleUser',
       slotName: 'handleUser',
+      titleSlotName: 'handleUserTitle',
       showTooltip: true,
       width: 125,
       filterConfig: {

frontend/src/views/bug-management/locale/en-US.ts

@@ -9,6 +9,7 @@ export default {
     severity: 'Severity',
     status: 'Status',
     handleMan: 'Handler',
+    handleManTips: '"-"Indicates that the user member has been removed or does not exist in the system',
     numberOfCase: 'Cases',
     belongPlatform: 'Platform',
     tag: 'Tag',

frontend/src/views/bug-management/locale/zh-CN.ts

@@ -12,6 +12,7 @@ export default {
     severity: '严重程度',
     status: '状态',
     handleMan: '处理人',
+    handleManTips: '"-"表示该用户成员被移除或系统中不存在',
     numberOfCase: '用例数',
     belongPlatform: '所属平台',
     tag: '标签',