gpui_macos: Fix hover feedback when another application is focused (#64301)

Follow-up #64234

If Zed is inactive, hovering over it produces no hover effects. While
this matches other apps like Slack, I think it’s better to preserve
existing behavior. This change keeps the bug fix of the original PR.

This PR uses `ActiveAlways` for normal windows, matching popup windows.

Release Notes:

- N/A
- [GPUI] N/A

crates/gpui_macos/src/window.rs

@@ -1204,15 +1204,7 @@ impl MacWindow {
                     } else {
                         native_window.setLevel_(NSNormalWindowLevel);
                         native_window.setAcceptsMouseMovedEvents_(NO);
-                        add_mouse_tracking_area(
-                            tracking_view,
-                            NSTrackingAreaOptions::MouseEnteredAndExited
-                                | NSTrackingAreaOptions::MouseMoved
-                                // Track while this application is active, even if another
-                                // window in the application has focus.
-                                | NSTrackingAreaOptions::ActiveInActiveApp
-                                | NSTrackingAreaOptions::InVisibleRect,
-                        );
+                        add_mouse_tracking_area(tracking_view);
                     }
 
                     if let Some(tabbing_identifier) = tabbing_identifier {
@@ -1225,15 +1217,7 @@ impl MacWindow {
                 // `AnchoredPopup` is rejected in `MacPlatform::open_window`, grouped here only
                 // for exhaustiveness.
                 WindowKind::PopUp | WindowKind::AnchoredPopup(_) => {
-                    add_mouse_tracking_area(
-                        tracking_view,
-                        NSTrackingAreaOptions::MouseEnteredAndExited
-                            | NSTrackingAreaOptions::MouseMoved
-                            // Track even when another application is active, e.g. so
-                            // notification windows can respond to hover.
-                            | NSTrackingAreaOptions::ActiveAlways
-                            | NSTrackingAreaOptions::InVisibleRect,
-                    );
+                    add_mouse_tracking_area(tracking_view);
 
                     native_window.setLevel_(NSPopUpWindowLevel);
                     let _: () = msg_send![
@@ -2483,7 +2467,14 @@ extern "C" fn dealloc_view(this: &Object, _: Sel) {
     }
 }
 
-fn add_mouse_tracking_area(native_view: &Objc2NSView, options: NSTrackingAreaOptions) {
+fn add_mouse_tracking_area(native_view: &Objc2NSView) {
+    let options = NSTrackingAreaOptions::MouseEnteredAndExited
+        | NSTrackingAreaOptions::MouseMoved
+        // Track even when another application is active so visible
+        // windows can respond to hover without being focused.
+        | NSTrackingAreaOptions::ActiveAlways
+        | NSTrackingAreaOptions::InVisibleRect;
+
     // SAFETY: NSView provides the tracking-event callbacks, and the owner is
     // the same view that retains the tracking area. No user info is supplied.
     let tracking_area = unsafe {