Web: fix scrollbar showing in task list column

The blocklist component also needs to wait two ticks before emitting the
"reshuffled" event (which triggers a resize of the tasks table).

web/app/src/components/jobs/Blocklist.vue

@@ -73,7 +73,10 @@ function removeBlocklistEntry(blocklistEntry) {
 
 watch(() => props.jobID, refreshBlocklist);
 watch(blocklist, () => {
-  nextTick(() => { emit("reshuffled") })
+  const emitter = () => { emit("reshuffled") };
+  nextTick(() => {
+    nextTick(emitter);
+  });
 })
 watch(isVisible, refreshBlocklist);
 onMounted(refreshBlocklist);