Re-Enable locale storage for PWA screenshots (privacy)

[carstingaxion]

	// $new_name = 'pwa-'.$new_name.'.jpeg';

	// $dir = $this->set_screenshots_dir_path(); // !
	// $new_file = $dir.'/'.$new_name;

	// already cached ?
	// DISABLED,
	// because it's nothing saved
	// to pick up here
	// if (
	// file_exists($new_file)
	// &&
	// file not older than 7 days
	// ! ( time() - filemtime($new_file) > 7 * 24 * 3600 )
	// file not older than 60 seconds // DEBUG
	// ! ( time() - filemtime($new_file) > 60 )
	// )
	// return $this->set_screenshots_dir_url() . $new_name; //!

Old stuff of

ft-performance/inc/pwa/namespace.php

Line 307 in dc0977c

// $new_name = 'pwa-'.$new_name.'.jpeg';