feat: add tooltip to clear queued jobs button in expanded queue overlay (#9020)

Adds a "Clear all jobs" tooltip to the cancel queued jobs button in the
expanded job queue header, matching the tooltip pattern used elsewhere
in the queue overlay.

Helps the user understand what this button does.

## Test plan
- Open the expanded job queue modal with queued jobs
- Hover over the cancel (list-x) button next to the queued count
- Verify the "Clear all jobs" tooltip appears

<img width="399" height="267" alt="Screenshot 2026-02-20 at 11 24 36 AM"
src="https://github.com/user-attachments/assets/9c83a3e8-4905-44ee-b270-b16401e9a20c"
/>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

src/components/queue/QueueOverlayHeader.vue

@@ -28,6 +28,7 @@
       </span>
       <Button
         v-if="queuedCount > 0"
+        v-tooltip.top="clearAllJobsTooltip"
         variant="destructive"
         size="icon"
         :aria-label="t('sideToolbar.queueProgressOverlay.clearQueued')"
@@ -109,6 +110,9 @@ const { t } = useI18n()
 
 const morePopoverRef = ref<PopoverMethods | null>(null)
 const moreTooltipConfig = computed(() => buildTooltipConfig(t('g.more')))
+const clearAllJobsTooltip = computed(() =>
+  buildTooltipConfig(t('sideToolbar.queueProgressOverlay.clearAllJobsTooltip'))
+)
 
 const onMoreClick = (event: MouseEvent) => {
   morePopoverRef.value?.toggle(event)

src/locales/en/main.json

@@ -850,6 +850,7 @@
       "jobsAddedToQueue": "{count} job added to queue | {count} jobs added to queue",
       "cancelJobTooltip": "Cancel job",
       "clearQueueTooltip": "Clear queue",
+      "clearAllJobsTooltip": "Cancel all running jobs",
       "clearHistoryDialogTitle": "Clear your job queue history?",
       "clearHistoryDialogDescription": "All the finished or failed jobs below will be removed from this Job queue panel.",
       "clearHistoryDialogAssetsNote": "Assets generated by these jobs won’t be deleted and can always be viewed from the assets panel."