Add indicator circle when new unseen menu items are available (#9220)

## Summary

Adds a little indicator circle when new workflow menu items are added
that the user has not seen

## Changes

- **What**: Adds a hidden setting to track menu items flagged as new
that have been seen

## Screenshots (if applicable)

<img width="164" height="120" alt="image"
src="https://github.com/user-attachments/assets/ac36673d-fbf1-42ff-9a9e-1371eb96115b"
/>

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9220-Add-indicator-circle-when-new-unseen-menu-items-are-available-3126d73d3650819cb8cde854d6b6510b)
by [Unito](https://www.unito.io)

src/components/topbar/WorkflowTab.vue

@@ -198,11 +198,13 @@ const contextMenuItems = computed<WorkflowMenuItem[]>(() => [
   ...baseMenuItems.value,
   { separator: true },
   {
+    id: 'close-tab',
     label: t('tabMenu.closeTab'),
     icon: 'pi pi-times',
     command: () => onCloseWorkflow(props.workflowOption)
   },
   {
+    id: 'close-tabs-to-left',
     label: t('tabMenu.closeTabsToLeft'),
     overlayIcon: {
       mainIcon: 'pi pi-times',
@@ -215,6 +217,7 @@ const contextMenuItems = computed<WorkflowMenuItem[]>(() => [
     disabled: props.isFirst
   },
   {
+    id: 'close-tabs-to-right',
     label: t('tabMenu.closeTabsToRight'),
     overlayIcon: {
       mainIcon: 'pi pi-times',
@@ -227,6 +230,7 @@ const contextMenuItems = computed<WorkflowMenuItem[]>(() => [
     disabled: props.isLast
   },
   {
+    id: 'close-other-tabs',
     label: t('tabMenu.closeOtherTabs'),
     overlayIcon: {
       mainIcon: 'pi pi-times',