Add nrfconnect window app to NRF builder (#23428)
Add nrfconnect window app to NRF builder (#23428)

Refers to Matter nRF Connect Window Covering Example Application
https://github.com/project-chip/connectedhomeip/tree/master/examples/window-app/nrfconnect

Fixes #23427
project-chip/connectedhomeip,project-chip/connectedhomeip,project-chip/connectedhomeip,project-chip/connectedhomeip,project-chip/connectedhomeip,project-chip/connectedhomeip