Change notification and system bar icon for tor-vpn

currently there's still a placeholder icon (an information i icon shown next to the notifications. I guess we want to show sth. else, like these icons https://www.figma.com/design/24DmiTNqVYRa1YI4UJkz4w/VPN-assets?node-id=82-1649&t=OQUe9bhNYgPsqgGu-0 ?