Fix rclone (scoop shim) and sftp issue due to detached console on Windows

internal/backend/foreground_windows.go

@@ -11,7 +11,7 @@ import (
 func startForeground(cmd *exec.Cmd) (bg func() error, err error) {
 	// just start the process and hope for the best
 	cmd.SysProcAttr = &syscall.SysProcAttr{}
-	cmd.SysProcAttr.CreationFlags = windows.DETACHED_PROCESS
+	cmd.SysProcAttr.CreationFlags = windows.CREATE_NEW_PROCESS_GROUP
 	err = cmd.Start()
 	if err != nil {
 		return nil, errors.Wrap(err, "cmd.Start")