Fix #5842 and refactoring

src/client/pages/instance/queue.queue.vue

@@ -12,7 +12,7 @@
 	</div>
 	<div class="_content" style="max-height: 180px; overflow: auto;">
 		<sequential-entrance :delay="15" v-if="jobs.length > 0">
-			<div v-for="(job, i) in jobs" :key="job[0]" :data-index="i">
+			<div v-for="(job, i) in jobs" :key="job[0]">
 				<span>{{ job[0] }}</span>
 				<span style="margin-left: 8px; opacity: 0.7;">({{ job[1] | number }} jobs)</span>
 			</div>