[Example Request] TanStack Router with Tabs

[Lonli-Lokli]

I think it would be great to have some sample of how BlueprintJs Tab component can be used with TanStack Router, especially in the case of multi-level tabs eg

-CountriesTabConponent
-- US Tab     |     UK Tab      | Italy Tab
TabComponent
  /        \           InfoPage        ExtraPage
ATab    BTab
PageA  PageB