feat(core): new docs list for tag detail (#12298)

close AF-2583

<!-- This is an auto-generated comment: release notes by coderabbit.ai -->

## Summary by CodeRabbit

- **New Features**
  - Introduced a new tag list header with breadcrumb navigation and a tag selector dropdown for improved navigation and tag management.
  - Added a searchable dropdown menu for selecting and switching between tags.

- **Improvements**
  - Updated the tag detail page to use a more dynamic, subscription-based document explorer for displaying tagged content.
  - Enhanced header controls with an updated display menu button.

- **Style**
  - Added comprehensive new styles for the tag list header and tag selector components.
  - Introduced a new scroll area style for flexible layout.

- **Documentation**
  - Marked an older page list header component as deprecated.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/frontend/core/src/components/page-list/docs/page-list-header.tsx

@@ -206,6 +206,9 @@ export const CollectionPageListHeader = ({
   );
 };
 
+/**
+ * @deprecated
+ */
 export const TagPageListHeader = ({
   tag,
   workspaceId,