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

John Tur created 

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

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

Release Notes:

- N/A

Change summary

crates/gpui_windows/src/window.rs | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

Detailed changes

crates/gpui_windows/src/window.rs 🔗 

@@ -174,7 +174,7 @@ impl WindowsWindowState {
     }
 
     pub(crate) fn is_maximized(&self) -> bool {
-        !self.is_fullscreen()
+        !self.is_fullscreen() && unsafe { IsZoomed(self.hwnd) }.as_bool()
     }
 
     fn bounds(&self) -> Bounds<Pixels> {