Update window-extensions to be more specific in description
Update window-extensions to be more specific in description

Makes it clear what the core component of the library is

Test: gw bOS
Change-Id: I8a20939b91f30c12e90c4070ab56c7a0cccef1c4

AndroidX/androidx,androidx/androidx,androidx/androidx,AndroidX/androidx,AndroidX/androidx,androidx/androidx,AndroidX/androidx,androidx/androidx,AndroidX/androidx,androidx/androidx,AndroidX/androidx,androidx/androidx,androidx/androidx,AndroidX/androidx,AndroidX/androidx,AndroidX/androidx,AndroidX/androidx,androidx/androidx,androidx/androidx,androidx/androidx