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/platform/settings/constants/coreSettings.ts

@@ -856,6 +856,13 @@ export const CORE_SETTINGS: SettingParams[] = [
     defaultValue: false,
     versionAdded: '1.37.0'
   },
+  {
+    id: 'Comfy.WorkflowActions.SeenItems',
+    name: 'Seen new workflow action items',
+    type: 'hidden',
+    defaultValue: [] as string[],
+    versionAdded: '1.41.5'
+  },
   {
     id: 'Comfy.Execution.PreviewMethod',
     category: ['Comfy', 'Execution', 'PreviewMethod'],