new_popup should use a guard over COUNT rather than manually modifying it

[dogkisser]

unexpected early returns (like from using ?) in new_popup may result in a dangling COUNT. this has already happened.

    if image_path.is_empty() {
       *COUNT.get().unwrap().lock().unwrap() += 1;
        return Ok(())
    }

    let mut image = SharedImage::load(image_path)?;

(fixed)