macOS: handle surface focus more gracefully

This will fix surface focus state is not consistent with first responder state when the search bar is open

macos/Sources/Features/Terminal/BaseTerminalController.swift

@@ -301,9 +301,8 @@ class BaseTerminalController: NSWindowController,
             // Our focus state requires that this window is key and our currently
             // focused surface is the surface in this view.
             let focused: Bool = (window?.isKeyWindow ?? false) &&
-                !commandPaletteIsShowing &&
-                focusedSurface != nil &&
-                surfaceView == focusedSurface!
+                surfaceView == focusedSurface &&
+                surfaceView.isFirstResponder
             surfaceView.focusDidChange(focused)
         }
     }

macos/Sources/Helpers/Extensions/NSView+Extension.swift

@@ -14,6 +14,11 @@ extension NSView {
 
         return false
     }
+
+    /// Returns true if this view is currently the first responder
+    var isFirstResponder: Bool {
+        window?.firstResponder === self
+    }
 }
 
 // MARK: Screenshot