Fix broken `is_maximized` check on Windows (#54436)

Bad change from https://github.com/zed-industries/zed/pull/54321

Fixes https://github.com/zed-industries/zed/issues/54418

Release Notes:

- N/A
847510ca4bJohn Tur committed on 4/21/2026, 5:35:13 PM· committed by GitHubparentf9cb919
1 file changedLine totals unavailable