fix: 看板用户行为CDR短信号码显示区间样式

src/views/dashboard/overview/components/UserActivity/index.vue

@@ -99,6 +99,7 @@ onMounted(() => {
             {{ t('views.dashboard.overview.userActivity.duration') }}: 
             <span>{{ parseDuration(item.data.callDuration) }}</span>
           </div>
+          <div v-else></div>
         </div>
         <div>
           {{ t('views.dashboard.overview.userActivity.result') }}:&nbsp;