feat: show active jobs label in top menu (#8169)

Replace the top-menu queue history icon with a localized “N active”
label so active jobs are visible at a glance.

Requested as part of the new
[designs](https://www.figma.com/design/LVilZgHGk5RwWOkVN6yCEK/Queue-Progress-Modal?node-id=3381-6181&m=dev).

I checked all failing snapshots and they are all expected (1 flaky).

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-8169-feat-show-active-jobs-label-in-top-menu-2ee6d73d3650812cbf0cda389395c563)
by [Unito](https://www.unito.io)

---------

Co-authored-by: github-actions <github-actions@github.com>

src/components/sidebar/tabs/AssetsSidebarTab.vue

@@ -202,6 +202,7 @@
 
 <script setup lang="ts">
 import { useDebounceFn, useElementHover, useResizeObserver } from '@vueuse/core'
+import { storeToRefs } from 'pinia'
 import Divider from 'primevue/divider'
 import ProgressSpinner from 'primevue/progressspinner'
 import { useToast } from 'primevue/usetoast'
@@ -246,6 +247,7 @@ interface JobOutputItem {
 const { t, n } = useI18n()
 const commandStore = useCommandStore()
 const queueStore = useQueueStore()
+const { activeJobsCount } = storeToRefs(queueStore)
 const executionStore = useExecutionStore()
 const settingStore = useSettingStore()
 
@@ -292,9 +294,6 @@ const formattedExecutionTime = computed(() => {
 })
 
 const queuedCount = computed(() => queueStore.pendingTasks.length)
-const activeJobsCount = computed(
-  () => queueStore.pendingTasks.length + queueStore.runningTasks.length
-)
 const activeJobsLabel = computed(() => {
   const count = activeJobsCount.value
   return t(