fix: keep Cua foreground actions on the target window

plugins/cua-driver/windows.go

@@ -11,6 +11,11 @@ import (
 var user32 = syscall.NewLazyDLL("user32.dll")
 var kernel32 = syscall.NewLazyDLL("kernel32.dll")
 
+func foregroundWindow() int64 {
+	hwnd, _, _ := user32.NewProc("GetForegroundWindow").Call()
+	return int64(hwnd)
+}
+
 func configureProcess(c *exec.Cmd) {
 	c.SysProcAttr = &syscall.SysProcAttr{HideWindow: true}
 }