Update AccessibilityNodeInfo#setBoundsInWindow docs

AccessibilityNodeInfo#setBoundsInWindow returns coordinates
unscaled by full-screen magnification configuration in Views
like the Settings app.

Manually checked #setBoundsInWindow with and without
magnification from an Accessibility service.

Test: ag/29910835
Bug: b/373862605
Flag: DOCS_ONLY
Change-Id: I51baf8a80e69d4e8c57e69c1a74d45a4bcfd37b6